Commit Graph

975519 Commits

Author SHA1 Message Date
Richard Fitzgerald
a4b7c0af61 soundwire: stream: Fix test for DP prepare complete
[ Upstream commit 3d3e88e336338834086278236d42039f3cde50e1 ]

In sdw_prep_deprep_slave_ports(), after the wait_for_completion()
the DP prepare status register is read. If this indicates that the
port is now prepared, the code should continue with the port setup.
It is irrelevant whether the wait_for_completion() timed out if the
port is now ready.

The previous implementation would always fail if the
wait_for_completion() timed out, even if the port was reporting
successful prepare.

This patch also fixes a minor bug where the return from sdw_read()
was not checked for error - any error code with LSBits clear could
be misinterpreted as a successful port prepare.

Fixes: 79df15b7d3 ("soundwire: Add helpers for ports operations")
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210618144745.30629-1-rf@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:47 +02:00
Zhen Lei
b0be06493e scsi: mpt3sas: Fix error return value in _scsih_expander_add()
[ Upstream commit d6c2ce435ffe23ef7f395ae76ec747414589db46 ]

When an expander does not contain any 'phys', an appropriate error code -1
should be returned, as done elsewhere in this function. However, we
currently do not explicitly assign this error code to 'rc'. As a result, 0
was incorrectly returned.

Link: https://lore.kernel.org/r/20210514081300.6650-1-thunder.leizhen@huawei.com
Fixes: f92363d123 ("[SCSI] mpt3sas: add new driver supporting 12GB SAS")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:47 +02:00
Christophe JAILLET
f51088868b habanalabs: Fix an error handling path in 'hl_pci_probe()'
[ Upstream commit 3002f467a0b0a70aec01d9f446da4ac8c6fda10b ]

If an error occurs after a 'pci_enable_pcie_error_reporting()' call, it
must be undone by a corresponding 'pci_disable_pcie_error_reporting()'
call, as already done in the remove function.

Fixes: 2e5eda4681 ("habanalabs: PCIe Advanced Error Reporting support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:47 +02:00
Yang Yingliang
c183b55ed7 mtd: rawnand: marvell: add missing clk_disable_unprepare() on error in marvell_nfc_resume()
[ Upstream commit ae94c49527aa9bd3b563349adc4b5617747ca6bd ]

Add clk_disable_unprepare() on error path in marvell_nfc_resume().

Fixes: bd9c3f9b3c ("mtd: rawnand: marvell: add suspend and resume hooks")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210601125814.3260364-1-yangyingliang@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:47 +02:00
Geert Uytterhoeven
f929d21af7 of: Fix truncation of memory sizes on 32-bit platforms
[ Upstream commit 2892d8a00d23d511a0591ac4b2ff3f050ae1f004 ]

Variable "size" has type "phys_addr_t", which can be either 32-bit or
64-bit on 32-bit systems, while "unsigned long" is always 32-bit on
32-bit systems.  Hence the cast in

    (unsigned long)size / SZ_1M

may truncate a 64-bit size to 32-bit, as casts have a higher operator
precedence than divisions.

Fix this by inverting the order of the cast and division, which should
be safe for memory blocks smaller than 4 PiB.  Note that the division is
actually a shift, as SZ_1M is a power-of-two constant, hence there is no
need to use div_u64().

While at it, use "%lu" to format "unsigned long".

Fixes: e8d9d1f548 ("drivers: of: add initialization code for static reserved memory")
Fixes: 3f0c820664 ("drivers: of: add initialization code for dynamic reserved memory")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/4a1117e72d13d26126f57be034c20dac02f1e915.1623835273.git.geert+renesas@glider.be
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:46 +02:00
Richard Fitzgerald
db45ea8767 ASoC: cs42l42: Correct definition of CS42L42_ADC_PDN_MASK
[ Upstream commit fac165f22ac947b55407cd3a60a2a9824f905235 ]

The definition of CS42L42_ADC_PDN_MASK was incorrectly defined
as the HP_PDN bit.

Fixes: 2c394ca796 ("ASoC: Add support for CS42L42 codec")
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210616135604.19363-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:46 +02:00
Jonathan Cameron
55bb225c08 iio: prox: isl29501: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
[ Upstream commit 92babc9938ebbf4050f2fba774836f7edc16a570 ]

Add __aligned(8) to ensure the buffer passed to
iio_push_to_buffers_with_timestamp() is suitable for the naturally
aligned timestamp that will be inserted.

Here an explicit structure is not used, because the holes would
necessitate the addition of an explict memset(), to avoid a kernel
data leak, making for a less minimal fix.

Fixes: 1c28799257 ("iio: light: isl29501: Add support for the ISL29501 ToF sensor.")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Mathieu Othacehe <m.othacehe@gmail.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-9-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:46 +02:00
Jonathan Cameron
4973967504 iio: light: vcnl4035: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
[ Upstream commit ec90b52c07c0403a6db60d752484ec08d605ead0 ]

Add __aligned(8) to ensure the buffer passed to
iio_push_to_buffers_with_timestamp() is suitable for the naturally
aligned timestamp that will be inserted.

Here an explicit structure is not used, because the holes would
necessitate the addition of an explict memset(), to avoid a potential
kernel data leak, making for a less minimal fix.

Fixes: 55707294c4 ("iio: light: Add support for vishay vcnl4035")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Parthiban Nallathambi <pn@denx.de>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-8-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:46 +02:00
Maciej W. Rozycki
c850b52e47 serial: 8250: Actually allow UPF_MAGIC_MULTIPLIER baud rates
[ Upstream commit 78bcae8616ac277d6cb7f38e211493948ed73e30 ]

Support for magic baud rate divisors of 32770 and 32769 used with SMSC
Super I/O chips for extra baud rates of 230400 and 460800 respectively
where base rate is 115200[1] has been added around Linux 2.5.64, which
predates our repo history, but the origin could be identified as commit
2a717aad772f ("Merge with Linux 2.5.64.") with the old MIPS/Linux repo
also at: <git://git.kernel.org/pub/scm/linux/kernel/git/ralf/linux.git>.

Code that is now in `serial8250_do_get_divisor' was added back then to
`serial8250_get_divisor', but that code would only ever trigger if one
of the higher baud rates was actually requested, and that cannot ever
happen, because the earlier call to `serial8250_get_baud_rate' never
returns them.  This is because it calls `uart_get_baud_rate' with the
maximum requested being the base rate, that is clk/16 or 115200 for SMSC
chips at their nominal clock rate.

Fix it then and allow UPF_MAGIC_MULTIPLIER baud rates to be selected, by
requesting the maximum baud rate of clk/4 rather than clk/16 if the flag
has been set.  Also correct the minimum baud rate, observing that these
ports only support actual (non-magic) divisors of up to 32767 only.

References:

[1] "FDC37M81x, PC98/99 Compliant Enhanced Super I/O Controller with
    Keyboard/Mouse Wake-Up", Standard Microsystems Corporation, Rev.
    03/27/2000, Table 31 - "Baud Rates", p. 77

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Link: https://lore.kernel.org/r/alpine.DEB.2.21.2105190412280.29169@angie.orcam.me.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:46 +02:00
Sergio Paracuellos
5db39ad3fa staging: mt7621-dts: fix pci address for PCI memory range
[ Upstream commit 5b4f167ef3555ec4c334a8dc89c1b44bb2c6bff5 ]

Driver code call 'devm_of_pci_get_host_bridge_resources'
to get resources and properly fill 'bridge->windows' and
'bridge->dma_ranges'. After parsing the ranges and store
as resources, at the end it makes a call to pci function
'pci_add_resource_offset' to set the offset for the
memory resource. To calculate offset, resource start address
subtracts pci address of the range. MT7621 does not need
any offset for the memory resource. Moreover, setting an
offset got into 'WARN_ON' calls from pci devices driver code.
Until now memory range pci_addr was being '0x00000000' and
res->start is '0x60000000' but becase pci controller driver
was manually setting resources and adding them using pci function
'pci_add_resource' where a zero is passed as offset, things
was properly working. Since PCI_IOBASE is defined now for
ralink we don't set nothing manually anymore so we have to
properly fix PCI address for this range to make things work
and the new pci address must be set to '0x60000000'. Doing
in this way the subtract result obtain zero as offset
and pci device driver code properly works.

Fixes: d59578da2b ("staging: mt7621-dts: add dts files")
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20210614100617.28753-4-sergio.paracuellos@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:46 +02:00
Junhao He
c5cd4b74fd coresight: core: Fix use of uninitialized pointer
[ Upstream commit d777a8991847729ec4e2a13fcad58c2b00bb19dc ]

Currently the pointer "sink" might be checked before initialized. Fix
this by initializing this pointer.

Link: https://lore.kernel.org/r/1620912469-52222-2-git-send-email-liuqi115@huawei.com
Fixes: 6d578258b9 ("coresight: Make sysfs functional on topologies with per core sink")
Signed-off-by: Junhao He <hejunhao2@hisilicon.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210614175901.532683-3-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:46 +02:00
Pavel Skripkin
58c0621c44 staging: rtl8712: fix memory leak in rtl871x_load_fw_cb
[ Upstream commit e02a3b945816a77702a2769a70ef5f9b06e49d54 ]

There is a leak in rtl8712 driver.
The problem was in non-freed adapter data if
firmware load failed.

This leak can be reproduced with this code:
https://syzkaller.appspot.com/text?tag=ReproC&x=16612f02d00000,
Autoload must fail (to not hit memory leak reported by syzkaller)

There are 2 possible ways how rtl871x_load_fw_cb() and
r871xu_dev_remove() can be called (in case of fw load error).

1st case:
	r871xu_dev_remove() then rtl871x_load_fw_cb()

	In this case r871xu_dev_remove() will wait for
	completion and then will jump to the end, because
	rtl871x_load_fw_cb() set intfdata to NULL:

	if (pnetdev) {
		struct _adapter *padapter = netdev_priv(pnetdev);

		/* never exit with a firmware callback pending */
		wait_for_completion(&padapter->rtl8712_fw_ready);
		pnetdev = usb_get_intfdata(pusb_intf);
		usb_set_intfdata(pusb_intf, NULL);
		if (!pnetdev)
			goto firmware_load_fail;

		... clean up code here ...
	}

2nd case:
	rtl871x_load_fw_cb() then r871xu_dev_remove()

	In this case pnetdev (from code snippet above) will
	be zero (because rtl871x_load_fw_cb() set it to NULL)
	And clean up code won't be executed again.

So, in all cases we need to free adapted data in rtl871x_load_fw_cb(),
because disconnect function cannot take care of it. And there won't be
any race conditions, because complete() call happens after setting
intfdata to NULL.

In previous patch I moved out free_netdev() from r8712_free_drv_sw()
and that's why now it's possible to free adapter data and then call
complete.

Fixes: 8c213fa591 ("staging: r8712u: Use asynchronous firmware loading")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/81e68fe0194499cc2e7692d35bc4dcf167827d8f.1623620630.git.paskripkin@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:45 +02:00
Pavel Skripkin
bf5d6f6979 staging: rtl8712: fix error handling in r871xu_drv_init
[ Upstream commit d1d3e3cdfda8eb91f0e24be7ec8be1e6e01b3a1c ]

Previous error handling path was unique for all
possible errors and there was unnecessary branching.
Also, one step for freeing drv_sw was missing. All
these problems was fixed by restructuring error
handling path.

Also, moved out free_netdev() from r8712_free_drv_sw() for
correct error handling.

Fixes: 2865d42c78 ("staging: r8712u: Add the new driver to the mainline kernel")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/febb00f72354449bb4d305f373d6d2f47e539ab4.1623620630.git.paskripkin@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:45 +02:00
Dan Carpenter
7bc3fa5db4 staging: gdm724x: check for overflow in gdm_lte_netif_rx()
[ Upstream commit 7002b526f4ff1f6da34356e67085caafa6be383a ]

This code assumes that "len" is at least 62 bytes, but we need a check
to prevent a read overflow.

Fixes: 61e1210476 ("staging: gdm7240: adding LTE USB driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YMcoTPsCYlhh2TQo@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:45 +02:00
Dan Carpenter
f937370610 staging: gdm724x: check for buffer overflow in gdm_lte_multi_sdu_pkt()
[ Upstream commit 4a36e160856db8a8ddd6a3d2e5db5a850ab87f82 ]

There needs to be a check to verify that we don't read beyond the end
of "buf".  This function is called from do_rx().  The "buf" is the USB
transfer_buffer and "len" is "urb->actual_length".

Fixes: 61e1210476 ("staging: gdm7240: adding LTE USB driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YMcnl4zCwGWGDVMG@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:45 +02:00
Shengjiu Wang
14106b90e1 ASoC: fsl_spdif: Fix error handler with pm_runtime_enable
[ Upstream commit 28108d71ee11a7232e1102effab3361049dcd3b8 ]

There is error message when defer probe happens:

fsl-spdif-dai 2dab0000.spdif: Unbalanced pm_runtime_enable!

Fix the error handler with pm_runtime_enable and add
fsl_spdif_remove() for pm_runtime_disable.

Fixes: 9cb2b3796e ("ASoC: fsl_spdif: Add pm runtime function")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1623392318-26304-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:45 +02:00
Jonathan Cameron
9cf11dca57 iio: light: vcnl4000: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
[ Upstream commit dce793c0ab00c35039028fdcd5ce123805a01361 ]

Add __aligned(8) to ensure the buffer passed to
iio_push_to_buffers_with_timestamp() is suitable for the naturally
aligned timestamp that will be inserted.

Here an explicit structure is not used, because the holes would
necessitate the addition of an explict memset(), to avoid a kernel
data leak, making for a less minimal fix.

Found during an audit of all callers of iio_push_to_buffers_with_timestamp()

Fixes: 8fe78d5261 ("iio: vcnl4000: Add buffer support for VCNL4010/20.")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Mathieu Othacehe <m.othacehe@gmail.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-7-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:45 +02:00
Jonathan Cameron
8c85c0f8cb iio: magn: rm3100: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
[ Upstream commit b8f939fd20690623cb24845a563e7bc1e4a21482 ]

Add __aligned(8) to ensure the buffer passed to
iio_push_to_buffers_with_timestamp() is suitable for the naturally
aligned timestamp that will be inserted.

Here an explicit structure is not used, because this buffer is used in
a non-trivial way for data repacking.

Fixes: 121354b2ec ("iio: magnetometer: Add driver support for PNI RM3100")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Song Qiang <songqiang1304521@gmail.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-6-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:45 +02:00
Jonathan Cameron
c923e9effe iio: adc: ti-ads8688: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
[ Upstream commit 61fa5dfa5f52806f5ce37a0ba5712c271eb22f98 ]

Add __aligned(8) to ensure the buffer passed to
iio_push_to_buffers_with_timestamp() is suitable for the naturally
aligned timestamp that will be inserted.

Fixes: f214ff521f ("iio: ti-ads8688: Update buffer allocation for timestamps")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-5-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:44 +02:00
Jonathan Cameron
15634d6dce iio: adc: mxs-lradc: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
[ Upstream commit 6a6be221b8bd561b053f0701ec752a5ed9007f69 ]

To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Add a comment on why the buffer is the size it is as not immediately
obvious.

Found during an audit of all calls of this function.

Fixes: 6dd112b9f8 ("iio: adc: mxs-lradc: Add support for ADC driver")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Andreas Klinger <ak@it-klinger.de>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-4-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:44 +02:00
Jonathan Cameron
a6a1e347c7 iio: adc: hx711: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
[ Upstream commit afe2a789fbf7acd1a05407fc7839cc08d23825e3 ]

To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.

Found during an audit of all calls of this function.

Fixes: d3bf60450d ("iio: hx711: add triggered buffer support")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Andreas Klinger <ak@it-klinger.de>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-3-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:44 +02:00
Jonathan Cameron
2abfdd6132 iio: adc: at91-sama5d2: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
[ Upstream commit 8f884758966259fa8c50c137ac6d4ce9bb7859db ]

To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.

Found during an audit of all calls of this function.

Fixes: 5e1a1da0f8 ("iio: adc: at91-sama5d2_adc: add hw trigger and buffer support")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-2-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:44 +02:00
Mika Westerberg
2abfa52947 thunderbolt: Bond lanes only when dual_link_port != NULL in alloc_dev_default()
[ Upstream commit a0d36fa1065901f939b04587a09c65303a64ac88 ]

We should not dereference ->dual_link_port if it is NULL and lane bonding
is requested. For this reason move lane bonding configuration happen
inside the block where ->dual_link_port != NULL.

Fixes: 54509f5005 ("thunderbolt: Add KUnit tests for path walking")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Yehezkel Bernat <YehezkelShB@gmail.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:44 +02:00
Andy Shevchenko
36f60700f9 eeprom: idt_89hpesx: Restore printing the unsupported fwnode name
[ Upstream commit e0db3deea73ba418bf5dc21f5a4e32ca87d16dde ]

When iterating over child firmware nodes restore printing the name of ones
that are not supported.

While at it, refactor loop body to clearly show that we stop at the first match.

Fixes: db15d73e5f ("eeprom: idt_89hpesx: Support both ACPI and OF probing")
Cc: Huy Duong <qhuyduong@hotmail.com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210607221757.81465-2-andy.shevchenko@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:44 +02:00
Andy Shevchenko
fc8ab06001 eeprom: idt_89hpesx: Put fwnode in matching case during ->probe()
[ Upstream commit 3f6ee1c095156a74ab2df605af13020f1ce3e600 ]

device_get_next_child_node() bumps a reference counting of a returned variable.
We have to balance it whenever we return to the caller.

Fixes: db15d73e5f ("eeprom: idt_89hpesx: Support both ACPI and OF probing")
Cc: Huy Duong <qhuyduong@hotmail.com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210607221757.81465-1-andy.shevchenko@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:44 +02:00
Clément Lassieur
c7188d1998 usb: dwc2: Don't reset the core after setting turnaround time
[ Upstream commit aafe93516b8567ab5864e1f4cd3eeabc54fb0e5a ]

Every time the hub signals a reset while we (device) are hsotg->connected,
dwc2_hsotg_core_init_disconnected() is called, which in turn calls
dwc2_hs_phy_init().

GUSBCFG.USBTrdTim is cleared upon Core Soft Reset, so if
hsotg->params.phy_utmi_width is 8-bit, the value of GUSBCFG.USBTrdTim (the
default one: 0x5, corresponding to 16-bit) is always different from
hsotg->params.phy_utmi_width, thus dwc2_core_reset() is called every
time (usbcfg != usbcfg_old), which causes 2 issues:

1) The call to dwc2_core_reset() does another reset 300us after the initial
Chirp K of the first reset (which should last at least Tuch = 1ms), and
messes up the High-speed Detection Handshake: both hub and device drive
current into the D+ and D- lines at the same time.

2) GUSBCFG.USBTrdTim is cleared by the second reset, so its value is always
the default one (0x5).

Setting GUSBCFG.USBTrdTim after the potential call to dwc2_core_reset()
fixes both issues.  It is now set even when select_phy is false because the
cost of the Core Soft Reset is removed.

Fixes: 1e868545f2 ("usb: dwc2: gadget: Move gadget phy init into core phy init")
Signed-off-by: Clément Lassieur <clement@lassieur.org>
Link: https://lore.kernel.org/r/20210603155921.940651-1-clement@lassieur.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:43 +02:00
Andrew Gabbasov
8aa1cb46b7 usb: gadget: f_fs: Fix setting of device and driver data cross-references
[ Upstream commit ecfbd7b9054bddb12cea07fda41bb3a79a7b0149 ]

FunctionFS device structure 'struct ffs_dev' and driver data structure
'struct ffs_data' are bound to each other with cross-reference pointers
'ffs_data->private_data' and 'ffs_dev->ffs_data'. While the first one
is supposed to be valid through the whole life of 'struct ffs_data'
(and while 'struct ffs_dev' exists non-freed), the second one is cleared
in 'ffs_closed()' (called from 'ffs_data_reset()' or the last
'ffs_data_put()'). This can be called several times, alternating in
different order with 'ffs_free_inst()', that, if possible, clears
the other cross-reference.

As a result, different cases of these calls order may leave stale
cross-reference pointers, used when the pointed structure is already
freed. Even if it occasionally doesn't cause kernel crash, this error
is reported by KASAN-enabled kernel configuration.

For example, the case [last 'ffs_data_put()' - 'ffs_free_inst()'] was
fixed by commit cdafb6d8b8 ("usb: gadget: f_fs: Fix use-after-free in
ffs_free_inst").

The other case ['ffs_data_reset()' - 'ffs_free_inst()' - 'ffs_data_put()']
now causes KASAN reported error [1], when 'ffs_data_reset()' clears
'ffs_dev->ffs_data', then 'ffs_free_inst()' frees the 'struct ffs_dev',
but can't clear 'ffs_data->private_data', which is then accessed
in 'ffs_closed()' called from 'ffs_data_put()'. This happens since
'ffs_dev->ffs_data' reference is cleared too early.

Moreover, one more use case, when 'ffs_free_inst()' is called immediately
after mounting FunctionFS device (that is before the descriptors are
written and 'ffs_ready()' is called), and then 'ffs_data_reset()'
or 'ffs_data_put()' is called from accessing "ep0" file or unmounting
the device. This causes KASAN error report like [2], since
'ffs_dev->ffs_data' is not yet set when 'ffs_free_inst()' can't properly
clear 'ffs_data->private_data', that is later accessed to freed structure.

Fix these (and may be other) cases of stale pointers access by moving
setting and clearing of the mentioned cross-references to the single
places, setting both of them when 'struct ffs_data' is created and
bound to 'struct ffs_dev', and clearing both of them when one of the
structures is destroyed. It seems convenient to make this pointer
initialization and structures binding in 'ffs_acquire_dev()' and
make pointers clearing in 'ffs_release_dev()'. This required some
changes in these functions parameters and return types.

Also, 'ffs_release_dev()' calling requires some cleanup, fixing minor
issues, like (1) 'ffs_release_dev()' is not called if 'ffs_free_inst()'
is called without unmounting the device, and "release_dev" callback
is not called at all, or (2) "release_dev" callback is called before
"ffs_closed" callback on unmounting, which seems to be not correctly
nested with "acquire_dev" and "ffs_ready" callbacks.
Make this cleanup togther with other mentioned 'ffs_release_dev()' changes.

[1]
==================================================================
root@rcar-gen3:~# mkdir /dev/cfs
root@rcar-gen3:~# mkdir /dev/ffs
root@rcar-gen3:~# modprobe libcomposite
root@rcar-gen3:~# mount -t configfs none /dev/cfs
root@rcar-gen3:~# mkdir /dev/cfs/usb_gadget/g1
root@rcar-gen3:~# mkdir /dev/cfs/usb_gadget/g1/functions/ffs.ffs
[   64.340664] file system registered
root@rcar-gen3:~# mount -t functionfs ffs /dev/ffs
root@rcar-gen3:~# cd /dev/ffs
root@rcar-gen3:/dev/ffs# /home/root/ffs-test
ffs-test: info: ep0: writing descriptors (in v2 format)
[   83.181442] read descriptors
[   83.186085] read strings
ffs-test: info: ep0: writing strings
ffs-test: dbg:  ep1: starting
ffs-test: dbg:  ep2: starting
ffs-test: info: ep1: starts
ffs-test: info: ep2: starts
ffs-test: info: ep0: starts

^C
root@rcar-gen3:/dev/ffs# cd /home/root/
root@rcar-gen3:~# rmdir /dev/cfs/usb_gadget/g1/functions/ffs.ffs
[   98.935061] unloading
root@rcar-gen3:~# umount /dev/ffs
[  102.734301] ==================================================================
[  102.742059] BUG: KASAN: use-after-free in ffs_release_dev+0x64/0xa8 [usb_f_fs]
[  102.749683] Write of size 1 at addr ffff0004d46ff549 by task umount/2997
[  102.756709]
[  102.758311] CPU: 0 PID: 2997 Comm: umount Not tainted 5.13.0-rc4+ #8
[  102.764971] Hardware name: Renesas Salvator-X board based on r8a77951 (DT)
[  102.772179] Call trace:
[  102.774779]  dump_backtrace+0x0/0x330
[  102.778653]  show_stack+0x20/0x2c
[  102.782152]  dump_stack+0x11c/0x1ac
[  102.785833]  print_address_description.constprop.0+0x30/0x274
[  102.791862]  kasan_report+0x14c/0x1c8
[  102.795719]  __asan_report_store1_noabort+0x34/0x58
[  102.800840]  ffs_release_dev+0x64/0xa8 [usb_f_fs]
[  102.805801]  ffs_fs_kill_sb+0x50/0x84 [usb_f_fs]
[  102.810663]  deactivate_locked_super+0xa0/0xf0
[  102.815339]  deactivate_super+0x98/0xac
[  102.819378]  cleanup_mnt+0xd0/0x1b0
[  102.823057]  __cleanup_mnt+0x1c/0x28
[  102.826823]  task_work_run+0x104/0x180
[  102.830774]  do_notify_resume+0x458/0x14e0
[  102.835083]  work_pending+0xc/0x5f8
[  102.838762]
[  102.840357] Allocated by task 2988:
[  102.844032]  kasan_save_stack+0x28/0x58
[  102.848071]  kasan_set_track+0x28/0x3c
[  102.852016]  ____kasan_kmalloc+0x84/0x9c
[  102.856142]  __kasan_kmalloc+0x10/0x1c
[  102.860088]  __kmalloc+0x214/0x2f8
[  102.863678]  kzalloc.constprop.0+0x14/0x20 [usb_f_fs]
[  102.868990]  ffs_alloc_inst+0x8c/0x208 [usb_f_fs]
[  102.873942]  try_get_usb_function_instance+0xf0/0x164 [libcomposite]
[  102.880629]  usb_get_function_instance+0x64/0x68 [libcomposite]
[  102.886858]  function_make+0x128/0x1ec [libcomposite]
[  102.892185]  configfs_mkdir+0x330/0x590 [configfs]
[  102.897245]  vfs_mkdir+0x12c/0x1bc
[  102.900835]  do_mkdirat+0x180/0x1d0
[  102.904513]  __arm64_sys_mkdirat+0x80/0x94
[  102.908822]  invoke_syscall+0xf8/0x25c
[  102.912772]  el0_svc_common.constprop.0+0x150/0x1a0
[  102.917891]  do_el0_svc+0xa0/0xd4
[  102.921386]  el0_svc+0x24/0x34
[  102.924613]  el0_sync_handler+0xcc/0x154
[  102.928743]  el0_sync+0x198/0x1c0
[  102.932238]
[  102.933832] Freed by task 2996:
[  102.937144]  kasan_save_stack+0x28/0x58
[  102.941181]  kasan_set_track+0x28/0x3c
[  102.945128]  kasan_set_free_info+0x28/0x4c
[  102.949435]  ____kasan_slab_free+0x104/0x118
[  102.953921]  __kasan_slab_free+0x18/0x24
[  102.958047]  slab_free_freelist_hook+0x148/0x1f0
[  102.962897]  kfree+0x318/0x440
[  102.966123]  ffs_free_inst+0x164/0x2d8 [usb_f_fs]
[  102.971075]  usb_put_function_instance+0x84/0xa4 [libcomposite]
[  102.977302]  ffs_attr_release+0x18/0x24 [usb_f_fs]
[  102.982344]  config_item_put+0x140/0x1a4 [configfs]
[  102.987486]  configfs_rmdir+0x3fc/0x518 [configfs]
[  102.992535]  vfs_rmdir+0x114/0x234
[  102.996122]  do_rmdir+0x274/0x2b0
[  102.999617]  __arm64_sys_unlinkat+0x94/0xc8
[  103.004015]  invoke_syscall+0xf8/0x25c
[  103.007961]  el0_svc_common.constprop.0+0x150/0x1a0
[  103.013080]  do_el0_svc+0xa0/0xd4
[  103.016575]  el0_svc+0x24/0x34
[  103.019801]  el0_sync_handler+0xcc/0x154
[  103.023930]  el0_sync+0x198/0x1c0
[  103.027426]
[  103.029020] The buggy address belongs to the object at ffff0004d46ff500
[  103.029020]  which belongs to the cache kmalloc-128 of size 128
[  103.042079] The buggy address is located 73 bytes inside of
[  103.042079]  128-byte region [ffff0004d46ff500, ffff0004d46ff580)
[  103.054236] The buggy address belongs to the page:
[  103.059262] page:0000000021aa849b refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff0004d46fee00 pfn:0x5146fe
[  103.070437] head:0000000021aa849b order:1 compound_mapcount:0
[  103.076456] flags: 0x8000000000010200(slab|head|zone=2)
[  103.081948] raw: 8000000000010200 fffffc0013521a80 0000000d0000000d ffff0004c0002300
[  103.090052] raw: ffff0004d46fee00 000000008020001e 00000001ffffffff 0000000000000000
[  103.098150] page dumped because: kasan: bad access detected
[  103.103985]
[  103.105578] Memory state around the buggy address:
[  103.110602]  ffff0004d46ff400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  103.118161]  ffff0004d46ff480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  103.125726] >ffff0004d46ff500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  103.133284]                                               ^
[  103.139120]  ffff0004d46ff580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  103.146679]  ffff0004d46ff600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  103.154238] ==================================================================
[  103.161792] Disabling lock debugging due to kernel taint
[  103.167319] Unable to handle kernel paging request at virtual address 0037801d6000018e
[  103.175406] Mem abort info:
[  103.178457]   ESR = 0x96000004
[  103.181609]   EC = 0x25: DABT (current EL), IL = 32 bits
[  103.187020]   SET = 0, FnV = 0
[  103.190185]   EA = 0, S1PTW = 0
[  103.193417] Data abort info:
[  103.196385]   ISV = 0, ISS = 0x00000004
[  103.200315]   CM = 0, WnR = 0
[  103.203366] [0037801d6000018e] address between user and kernel address ranges
[  103.210611] Internal error: Oops: 96000004 [#1] PREEMPT SMP
[  103.216231] Modules linked in: usb_f_fs libcomposite configfs ath9k_htc led_class mac80211 libarc4 ath9k_common ath9k_hw ath cfg80211 aes_ce_blk sata_rc4
[  103.259233] CPU: 0 PID: 2997 Comm: umount Tainted: G    B             5.13.0-rc4+ #8
[  103.267031] Hardware name: Renesas Salvator-X board based on r8a77951 (DT)
[  103.273951] pstate: 00000005 (nzcv daif -PAN -UAO -TCO BTYPE=--)
[  103.280001] pc : ffs_data_clear+0x138/0x370 [usb_f_fs]
[  103.285197] lr : ffs_data_clear+0x124/0x370 [usb_f_fs]
[  103.290385] sp : ffff800014777a80
[  103.293725] x29: ffff800014777a80 x28: ffff0004d7649c80 x27: 0000000000000000
[  103.300931] x26: ffff800014777fb0 x25: ffff60009aec9394 x24: ffff0004d7649ca4
[  103.308136] x23: 1fffe0009a3d063a x22: dfff800000000000 x21: ffff0004d1e831d0
[  103.315340] x20: e1c000eb00000bb4 x19: ffff0004d1e83000 x18: 0000000000000000
[  103.322545] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
[  103.329748] x14: 0720072007200720 x13: 0720072007200720 x12: 1ffff000012ef658
[  103.336952] x11: ffff7000012ef658 x10: 0720072007200720 x9 : ffff800011322648
[  103.344157] x8 : ffff800014777818 x7 : ffff80000977b2c7 x6 : 0000000000000000
[  103.351359] x5 : 0000000000000001 x4 : ffff7000012ef659 x3 : 0000000000000001
[  103.358562] x2 : 0000000000000000 x1 : 1c38001d6000018e x0 : e1c000eb00000c70
[  103.365766] Call trace:
[  103.368235]  ffs_data_clear+0x138/0x370 [usb_f_fs]
[  103.373076]  ffs_data_reset+0x20/0x304 [usb_f_fs]
[  103.377829]  ffs_data_closed+0x1ec/0x244 [usb_f_fs]
[  103.382755]  ffs_fs_kill_sb+0x70/0x84 [usb_f_fs]
[  103.387420]  deactivate_locked_super+0xa0/0xf0
[  103.391905]  deactivate_super+0x98/0xac
[  103.395776]  cleanup_mnt+0xd0/0x1b0
[  103.399299]  __cleanup_mnt+0x1c/0x28
[  103.402906]  task_work_run+0x104/0x180
[  103.406691]  do_notify_resume+0x458/0x14e0
[  103.410823]  work_pending+0xc/0x5f8
[  103.414351] Code: b4000a54 9102f280 12000802 d343fc01 (38f66821)
[  103.420490] ---[ end trace 57b43a50e8244f57 ]---
Segmentation fault
root@rcar-gen3:~#
==================================================================

[2]
==================================================================
root@rcar-gen3:~# mkdir /dev/ffs
root@rcar-gen3:~# modprobe libcomposite
root@rcar-gen3:~#
root@rcar-gen3:~# mount -t configfs none /dev/cfs
root@rcar-gen3:~# mkdir /dev/cfs/usb_gadget/g1
root@rcar-gen3:~# mkdir /dev/cfs/usb_gadget/g1/functions/ffs.ffs
[   54.766480] file system registered
root@rcar-gen3:~# mount -t functionfs ffs /dev/ffs
root@rcar-gen3:~# rmdir /dev/cfs/usb_gadget/g1/functions/ffs.ffs
[   63.197597] unloading
root@rcar-gen3:~# cat /dev/ffs/ep0
cat: read error:[   67.213506] ==================================================================
[   67.222095] BUG: KASAN: use-after-free in ffs_data_clear+0x70/0x370 [usb_f_fs]
[   67.229699] Write of size 1 at addr ffff0004c26e974a by task cat/2994
[   67.236446]
[   67.238045] CPU: 0 PID: 2994 Comm: cat Not tainted 5.13.0-rc4+ #8
[   67.244431] Hardware name: Renesas Salvator-X board based on r8a77951 (DT)
[   67.251624] Call trace:
[   67.254212]  dump_backtrace+0x0/0x330
[   67.258081]  show_stack+0x20/0x2c
[   67.261579]  dump_stack+0x11c/0x1ac
[   67.265260]  print_address_description.constprop.0+0x30/0x274
[   67.271286]  kasan_report+0x14c/0x1c8
[   67.275143]  __asan_report_store1_noabort+0x34/0x58
[   67.280265]  ffs_data_clear+0x70/0x370 [usb_f_fs]
[   67.285220]  ffs_data_reset+0x20/0x304 [usb_f_fs]
[   67.290172]  ffs_data_closed+0x240/0x244 [usb_f_fs]
[   67.295305]  ffs_ep0_release+0x40/0x54 [usb_f_fs]
[   67.300256]  __fput+0x304/0x580
[   67.303576]  ____fput+0x18/0x24
[   67.306893]  task_work_run+0x104/0x180
[   67.310846]  do_notify_resume+0x458/0x14e0
[   67.315154]  work_pending+0xc/0x5f8
[   67.318834]
[   67.320429] Allocated by task 2988:
[   67.324105]  kasan_save_stack+0x28/0x58
[   67.328144]  kasan_set_track+0x28/0x3c
[   67.332090]  ____kasan_kmalloc+0x84/0x9c
[   67.336217]  __kasan_kmalloc+0x10/0x1c
[   67.340163]  __kmalloc+0x214/0x2f8
[   67.343754]  kzalloc.constprop.0+0x14/0x20 [usb_f_fs]
[   67.349066]  ffs_alloc_inst+0x8c/0x208 [usb_f_fs]
[   67.354017]  try_get_usb_function_instance+0xf0/0x164 [libcomposite]
[   67.360705]  usb_get_function_instance+0x64/0x68 [libcomposite]
[   67.366934]  function_make+0x128/0x1ec [libcomposite]
[   67.372260]  configfs_mkdir+0x330/0x590 [configfs]
[   67.377320]  vfs_mkdir+0x12c/0x1bc
[   67.380911]  do_mkdirat+0x180/0x1d0
[   67.384589]  __arm64_sys_mkdirat+0x80/0x94
[   67.388899]  invoke_syscall+0xf8/0x25c
[   67.392850]  el0_svc_common.constprop.0+0x150/0x1a0
[   67.397969]  do_el0_svc+0xa0/0xd4
[   67.401464]  el0_svc+0x24/0x34
[   67.404691]  el0_sync_handler+0xcc/0x154
[   67.408819]  el0_sync+0x198/0x1c0
[   67.412315]
[   67.413909] Freed by task 2993:
[   67.417220]  kasan_save_stack+0x28/0x58
[   67.421257]  kasan_set_track+0x28/0x3c
[   67.425204]  kasan_set_free_info+0x28/0x4c
[   67.429513]  ____kasan_slab_free+0x104/0x118
[   67.434001]  __kasan_slab_free+0x18/0x24
[   67.438128]  slab_free_freelist_hook+0x148/0x1f0
[   67.442978]  kfree+0x318/0x440
[   67.446205]  ffs_free_inst+0x164/0x2d8 [usb_f_fs]
[   67.451156]  usb_put_function_instance+0x84/0xa4 [libcomposite]
[   67.457385]  ffs_attr_release+0x18/0x24 [usb_f_fs]
[   67.462428]  config_item_put+0x140/0x1a4 [configfs]
[   67.467570]  configfs_rmdir+0x3fc/0x518 [configfs]
[   67.472626]  vfs_rmdir+0x114/0x234
[   67.476215]  do_rmdir+0x274/0x2b0
[   67.479710]  __arm64_sys_unlinkat+0x94/0xc8
[   67.484108]  invoke_syscall+0xf8/0x25c
[   67.488055]  el0_svc_common.constprop.0+0x150/0x1a0
[   67.493175]  do_el0_svc+0xa0/0xd4
[   67.496671]  el0_svc+0x24/0x34
[   67.499896]  el0_sync_handler+0xcc/0x154
[   67.504024]  el0_sync+0x198/0x1c0
[   67.507520]
[   67.509114] The buggy address belongs to the object at ffff0004c26e9700
[   67.509114]  which belongs to the cache kmalloc-128 of size 128
[   67.522171] The buggy address is located 74 bytes inside of
[   67.522171]  128-byte region [ffff0004c26e9700, ffff0004c26e9780)
[   67.534328] The buggy address belongs to the page:
[   67.539355] page:000000003177a217 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5026e8
[   67.549175] head:000000003177a217 order:1 compound_mapcount:0
[   67.555195] flags: 0x8000000000010200(slab|head|zone=2)
[   67.560687] raw: 8000000000010200 fffffc0013037100 0000000c00000002 ffff0004c0002300
[   67.568791] raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000
[   67.576890] page dumped because: kasan: bad access detected
[   67.582725]
[   67.584318] Memory state around the buggy address:
[   67.589343]  ffff0004c26e9600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   67.596903]  ffff0004c26e9680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   67.604463] >ffff0004c26e9700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   67.612022]                                               ^
[   67.617860]  ffff0004c26e9780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   67.625421]  ffff0004c26e9800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   67.632981] ==================================================================
[   67.640535] Disabling lock debugging due to kernel taint
 File descriptor[   67.646100] Unable to handle kernel paging request at virtual address fabb801d4000018d
 in bad state
[   67.655456] Mem abort info:
[   67.659619]   ESR = 0x96000004
[   67.662801]   EC = 0x25: DABT (current EL), IL = 32 bits
[   67.668225]   SET = 0, FnV = 0
[   67.671375]   EA = 0, S1PTW = 0
[   67.674613] Data abort info:
[   67.677587]   ISV = 0, ISS = 0x00000004
[   67.681522]   CM = 0, WnR = 0
[   67.684588] [fabb801d4000018d] address between user and kernel address ranges
[   67.691849] Internal error: Oops: 96000004 [#1] PREEMPT SMP
[   67.697470] Modules linked in: usb_f_fs libcomposite configfs ath9k_htc led_class mac80211 libarc4 ath9k_common ath9k_hw ath cfg80211 aes_ce_blk crypto_simd cryptd aes_ce_cipher ghash_ce gf128mul sha2_ce sha1_ce evdev sata_rcar libata xhci_plat_hcd scsi_mod xhci_hcd rene4
[   67.740467] CPU: 0 PID: 2994 Comm: cat Tainted: G    B             5.13.0-rc4+ #8
[   67.748005] Hardware name: Renesas Salvator-X board based on r8a77951 (DT)
[   67.754924] pstate: 00000005 (nzcv daif -PAN -UAO -TCO BTYPE=--)
[   67.760974] pc : ffs_data_clear+0x138/0x370 [usb_f_fs]
[   67.766178] lr : ffs_data_clear+0x124/0x370 [usb_f_fs]
[   67.771365] sp : ffff800014767ad0
[   67.774706] x29: ffff800014767ad0 x28: ffff800009cf91c0 x27: ffff0004c54861a0
[   67.781913] x26: ffff0004dc90b288 x25: 1fffe00099ec10f5 x24: 00000000000a801d
[   67.789118] x23: 1fffe00099f6953a x22: dfff800000000000 x21: ffff0004cfb4a9d0
[   67.796322] x20: d5e000ea00000bb1 x19: ffff0004cfb4a800 x18: 0000000000000000
[   67.803526] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
[   67.810730] x14: 0720072007200720 x13: 0720072007200720 x12: 1ffff000028ecefa
[   67.817934] x11: ffff7000028ecefa x10: 0720072007200720 x9 : ffff80001132c014
[   67.825137] x8 : ffff8000147677d8 x7 : ffff8000147677d7 x6 : 0000000000000000
[   67.832341] x5 : 0000000000000001 x4 : ffff7000028ecefb x3 : 0000000000000001
[   67.839544] x2 : 0000000000000005 x1 : 1abc001d4000018d x0 : d5e000ea00000c6d
[   67.846748] Call trace:
[   67.849218]  ffs_data_clear+0x138/0x370 [usb_f_fs]
[   67.854058]  ffs_data_reset+0x20/0x304 [usb_f_fs]
[   67.858810]  ffs_data_closed+0x240/0x244 [usb_f_fs]
[   67.863736]  ffs_ep0_release+0x40/0x54 [usb_f_fs]
[   67.868488]  __fput+0x304/0x580
[   67.871665]  ____fput+0x18/0x24
[   67.874837]  task_work_run+0x104/0x180
[   67.878622]  do_notify_resume+0x458/0x14e0
[   67.882754]  work_pending+0xc/0x5f8
[   67.886282] Code: b4000a54 9102f280 12000802 d343fc01 (38f66821)
[   67.892422] ---[ end trace 6d7cedf53d7abbea ]---
Segmentation fault
root@rcar-gen3:~#
==================================================================

Fixes: 4b187fceec ("usb: gadget: FunctionFS: add devices management code")
Fixes: 3262ad8243 ("usb: gadget: f_fs: Stop ffs_closed NULL pointer dereference")
Fixes: cdafb6d8b8 ("usb: gadget: f_fs: Fix use-after-free in ffs_free_inst")
Reported-by: Bhuvanesh Surachari <bhuvanesh_surachari@mentor.com>
Tested-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Reviewed-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com>
Link: https://lore.kernel.org/r/20210603171507.22514-1-andrew_gabbasov@mentor.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:43 +02:00
Christophe JAILLET
d4d3cd4c76 ASoC: mediatek: mtk-btcvsd: Fix an error handling path in 'mtk_btcvsd_snd_probe()'
[ Upstream commit b6052c3c7a78f5e2b9756c92ef77c0b56435f107 ]

If an error occurs after a successful 'of_iomap()' call, it must be undone
by a corresponding 'iounmap()' call, as already done in the remove
function.

While at it, remove the useless initialization of 'ret' at the beginning of
the function.

Fixes: 4bd8597dc3 ("ASoC: mediatek: add btcvsd driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/0c2ba562c3364e61bfbd5b3013a99dfa0d9045d7.1622989685.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:43 +02:00
Bard Liao
92a30a90d6 ASoC: rt5682-sdw: set regcache_cache_only false before reading RT5682_DEVICE_ID
[ Upstream commit c0372bc873dd29f325ee908351e0bd5b08d4d608 ]

RT5682_DEVICE_ID is a volatile register, we can not read it in cache
only mode.

Fixes: 03f6fc6de9 ("ASoC: rt5682: Add the soundwire support")
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210607222239.582139-14-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:43 +02:00
Shuming Fan
696cfb2567 ASoC: rt5682: fix getting the wrong device id when the suspend_stress_test
[ Upstream commit 867f8d18df4f5ccd6c2daf4441a6adeca0b9725b ]

This patch will be the workaround to fix getting the wrong device ID on the rare chance.
It seems like something unstable when the system resumes. e.g. the bus clock
This patch tries to read the device ID to check several times.
After the test, the driver will get the correct device ID the second time.

Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20210111092740.9128-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:43 +02:00
Pierre-Louis Bossart
8ef111db5e ASoC: rt715-sdw: use first_hw_init flag on resume
[ Upstream commit dbc07517ab173688ef11234d1099bc1e24e4f14b ]

The intent of the status check on resume was to verify if a SoundWire
peripheral reported ATTACHED before waiting for the initialization to
complete. This is required to avoid timeouts that will happen with
'ghost' devices that are exposed in the platform firmware but are not
populated in hardware.

Unfortunately we used 'hw_init' instead of 'first_hw_init'. Due to
another error, the resume operation never timed out, but the volume
settings were not properly restored.

BugLink: https://github.com/thesofproject/linux/issues/2908
BugLink: https://github.com/thesofproject/linux/issues/2637
Fixes: d1ede0641b ('ASoC: rt715: add RT715 codec driver')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Link: https://lore.kernel.org/r/20210607222239.582139-11-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:43 +02:00
Pierre-Louis Bossart
36dc6957f7 ASoC: rt711-sdw: use first_hw_init flag on resume
[ Upstream commit a0897ebca669f09a2e02206a9c48a738af655329 ]

The intent of the status check on resume was to verify if a SoundWire
peripheral reported ATTACHED before waiting for the initialization to
complete. This is required to avoid timeouts that will happen with
'ghost' devices that are exposed in the platform firmware but are not
populated in hardware.

Unfortunately we used 'hw_init' instead of 'first_hw_init'. Due to
another error, the resume operation never timed out, but the volume
settings were not properly restored.

BugLink: https://github.com/thesofproject/linux/issues/2908
BugLink: https://github.com/thesofproject/linux/issues/2637
Fixes: 320b8b0d13 ('ASoC: rt711: add rt711 codec driver')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Link: https://lore.kernel.org/r/20210607222239.582139-9-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:43 +02:00
Pierre-Louis Bossart
de77f9d92c ASoC: rt700-sdw: use first_hw_init flag on resume
[ Upstream commit a9e54e5fbe396b546771cf77b43ce7c75e212278 ]

The intent of the status check on resume was to verify if a SoundWire
peripheral reported ATTACHED before waiting for the initialization to
complete. This is required to avoid timeouts that will happen with
'ghost' devices that are exposed in the platform firmware but are not
populated in hardware.

Unfortunately we used 'hw_init' instead of 'first_hw_init'. Due to
another error, the resume operation never timed out, but the volume
settings were not properly restored.

BugLink: https://github.com/thesofproject/linux/issues/2908
BugLink: https://github.com/thesofproject/linux/issues/2637
Fixes: 7d2a5f9ae4 ('ASoC: rt700: add rt700 codec driver')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Link: https://lore.kernel.org/r/20210607222239.582139-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:43 +02:00
Pierre-Louis Bossart
e1456cba8e ASoC: rt5682-sdw: use first_hw_init flag on resume
[ Upstream commit 5361a42114689f875a9748299cadb4b1adbee6f4 ]

The intent of the status check on resume was to verify if a SoundWire
peripheral reported ATTACHED before waiting for the initialization to
complete. This is required to avoid timeouts that will happen with
'ghost' devices that are exposed in the platform firmware but are not
populated in hardware.

Unfortunately we used 'hw_init' instead of 'first_hw_init'. Due to
another error, the resume operation never timed out, but the volume
settings were not properly restored.

BugLink: https://github.com/thesofproject/linux/issues/2908
BugLink: https://github.com/thesofproject/linux/issues/2637
Fixes: 03f6fc6de9 ('ASoC: rt5682: Add the soundwire support')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Link: https://lore.kernel.org/r/20210607222239.582139-6-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:42 +02:00
Pierre-Louis Bossart
16674ae3b2 ASoC: rt1308-sdw: use first_hw_init flag on resume
[ Upstream commit 30e102dab5fad1db71684f8ac5e1ac74e49da06d ]

The intent of the status check on resume was to verify if a SoundWire
peripheral reported ATTACHED before waiting for the initialization to
complete. This is required to avoid timeouts that will happen with
'ghost' devices that are exposed in the platform firmware but are not
populated in hardware.

Unfortunately we used 'hw_init' instead of 'first_hw_init'. Due to
another error, the resume operation never timed out, but the volume
settings were not properly restored.

BugLink: https://github.com/thesofproject/linux/issues/2908
BugLink: https://github.com/thesofproject/linux/issues/2637
Fixes: a87a6653a2 ('ASoC: rt1308-sdw: add rt1308 SdW amplifier driver')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Link: https://lore.kernel.org/r/20210607222239.582139-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:42 +02:00
Pierre-Louis Bossart
dc15216412 ASoC: max98373-sdw: use first_hw_init flag on resume
[ Upstream commit bf881170311ea74ff30c3be0be8fb097132ce696 ]

The intent of the status check on resume was to verify if a SoundWire
peripheral reported ATTACHED before waiting for the initialization to
complete. This is required to avoid timeouts that will happen with
'ghost' devices that are exposed in the platform firmware but are not
populated in hardware.

Unfortunately we used 'hw_init' instead of 'first_hw_init'. Due to
another error, the resume operation never timed out, but the volume
settings were not properly restored.

This patch renames the status flag to 'first_hw_init' for consistency
with other drivers.

BugLink: https://github.com/thesofproject/linux/issues/2637
Fixes: 56a5b7910e ('ASoC: codecs: max98373: add SoundWire support')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Link: https://lore.kernel.org/r/20210607222239.582139-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:42 +02:00
Srinath Mannam
45a3d00eaf iommu/dma: Fix IOVA reserve dma ranges
[ Upstream commit 571f316074a203e979ea90211d9acf423dfe5f46 ]

Fix IOVA reserve failure in the case when address of first memory region
listed in dma-ranges is equal to 0x0.

Fixes: aadad097cd ("iommu/dma: Reserve IOVA for PCIe inaccessible DMA address")
Signed-off-by: Srinath Mannam <srinath.mannam@broadcom.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Tested-by: Sven Peter <sven@svenpeter.dev>
Link: https://lore.kernel.org/r/20200914072319.6091-1-srinath.mannam@broadcom.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:42 +02:00
Kees Cook
ad73683815 selftests: splice: Adjust for handler fallback removal
[ Upstream commit 6daf076b717d189f4d02a303d45edd5732341ec1 ]

Some pseudo-filesystems do not have an explicit splice fops since adding
commit 36e2c7421f ("fs: don't allow splice read/write without explicit ops"),
and now will reject attempts to use splice() in those filesystem paths.

Reported-by: kernel test robot <rong.a.chen@intel.com>
Link: https://lore.kernel.org/lkml/202009181443.C2179FB@keescook/
Fixes: 36e2c7421f ("fs: don't allow splice read/write without explicit ops")
Cc: Christoph Hellwig <hch@lst.de>
Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:42 +02:00
Randy Dunlap
045c29902f s390: appldata depends on PROC_SYSCTL
[ Upstream commit 5d3516b3647621d5a1180672ea9e0817fb718ada ]

APPLDATA_BASE should depend on PROC_SYSCTL instead of PROC_FS.
Building with PROC_FS but not PROC_SYSCTL causes a build error,
since appldata_base.c uses data and APIs from fs/proc/proc_sysctl.c.

arch/s390/appldata/appldata_base.o: in function `appldata_generic_handler':
appldata_base.c:(.text+0x192): undefined reference to `sysctl_vals'

Fixes: c185b783b0 ("[S390] Remove config options.")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: linux-s390@vger.kernel.org
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Link: https://lore.kernel.org/r/20210528002420.17634-1-rdunlap@infradead.org
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:42 +02:00
Niklas Schnelle
485b1c02b5 s390: enable HAVE_IOREMAP_PROT
[ Upstream commit d460bb6c6417588dd8b0907d34f69b237918812a ]

In commit b02002cc4c ("s390/pci: Implement ioremap_wc/prot() with
MIO") we implemented both ioremap_wc() and ioremap_prot() however until
now we had not set HAVE_IOREMAP_PROT in Kconfig, do so now.

This also requires implementing pte_pgprot() as this is used in the
generic_access_phys() code enabled by CONFIG_HAVE_IOREMAP_PROT. As with
ioremap_wc() we need to take the MMIO Write Back bit index into account.

Moreover since the pgprot value returned from pte_pgprot() is to be used
for mappings into kernel address space we must make sure that it uses
appropriate kernel page table protection bits. In particular a pgprot
value originally coming from userspace could have the _PAGE_PROTECT
bit set to enable fault based dirty bit accounting which would then make
the mapping inaccessible when used in kernel address space.

Fixes: b02002cc4c ("s390/pci: Implement ioremap_wc/prot() with MIO")
Reviewed-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:42 +02:00
Heiko Carstens
d65f69deac s390/irq: select HAVE_IRQ_EXIT_ON_IRQ_STACK
[ Upstream commit 9ceed9988a8e6a1656ed2bdaa30501cf0f3dd925 ]

irq_exit() is always called on async stack. Therefore select
HAVE_IRQ_EXIT_ON_IRQ_STACK and get a tiny optimization in
invoke_softirq().

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:42 +02:00
Alexander Monakov
d8fe62cb91 iommu/amd: Fix extended features logging
[ Upstream commit 4b21a503adf597773e4b37db05db0e9b16a81d53 ]

print_iommu_info prints the EFR register and then the decoded list of
features on a separate line:

pci 0000:00:00.2: AMD-Vi: Extended features (0x206d73ef22254ade):
 PPR X2APIC NX GT IA GA PC GA_vAPIC

The second line is emitted via 'pr_cont', which causes it to have a
different ('warn') loglevel compared to the previous line ('info').

Commit 9a295ff0ff attempted to rectify this by removing the newline
from the pci_info format string, but this doesn't work, as pci_info
calls implicitly append a newline anyway.

Printing the decoded features on the same line would make it quite long.
Instead, change pci_info() to pr_info() to omit PCI bus location info,
which is also shown in the preceding message. This results in:

pci 0000:00:00.2: AMD-Vi: Found IOMMU cap 0x40
AMD-Vi: Extended features (0x206d73ef22254ade): PPR X2APIC NX GT IA GA PC GA_vAPIC
AMD-Vi: Interrupt remapping enabled

Fixes: 9a295ff0ff ("iommu/amd: Print extended features in one line to fix divergent log levels")
Link: https://lore.kernel.org/lkml/alpine.LNX.2.20.13.2104112326460.11104@monopod.intra.ispras.ru
Signed-off-by: Alexander Monakov <amonakov@ispras.ru>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Cc: iommu@lists.linux-foundation.org
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Link: https://lore.kernel.org/r/20210504102220.1793-1-amonakov@ispras.ru
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:41 +02:00
Zhen Lei
bd95a3e159 visorbus: fix error return code in visorchipset_init()
[ Upstream commit ce52ec5beecc1079c251f60e3973b3758f60eb59 ]

Commit 1366a3db3d ("staging: unisys: visorbus: visorchipset_init clean
up gotos") assigns the initial value -ENODEV to the local variable 'err',
and the first several error branches will return this value after "goto
error". But commit f1f537c2e7 ("staging: unisys: visorbus: Consolidate
controlvm channel creation.") overwrites 'err' in the middle of the way.
As a result, some error branches do not successfully return the initial
value -ENODEV of 'err', but return 0.

In addition, when kzalloc() fails, -ENOMEM should be returned instead of
-ENODEV.

Fixes: f1f537c2e7 ("staging: unisys: visorbus: Consolidate controlvm channel creation.")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20210528082614.9337-1-thunder.leizhen@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:41 +02:00
Joachim Fenkes
e5a3a3108f fsi/sbefifo: Fix reset timeout
[ Upstream commit 9ab1428dfe2c66b51e0b41337cd0164da0ab6080 ]

On BMCs with lower timer resolution than 1ms, msleep(1) will take
way longer than 1ms, so looping 10k times won't wait for 10s but
significantly longer.

Fix this by using jiffies like the rest of the code.

Fixes: 9f4a8a2d7f ("fsi/sbefifo: Add driver for the SBE FIFO")
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Link: https://lore.kernel.org/r/20200724071518.430515-3-joel@jms.id.au
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:41 +02:00
Joachim Fenkes
4a95eb0c80 fsi/sbefifo: Clean up correct FIFO when receiving reset request from SBE
[ Upstream commit 95152433e46fdb36652ebdbea442356a16ae1fa6 ]

When the SBE requests a reset via the down FIFO, that is also the
FIFO we should go and reset ;)

Fixes: 9f4a8a2d7f ("fsi/sbefifo: Add driver for the SBE FIFO")
Signed-off-by: Joachim Fenkes <FENKES@de.ibm.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20200724071518.430515-2-joel@jms.id.au
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:41 +02:00
Eddie James
719c4db394 fsi: occ: Don't accept response from un-initialized OCC
[ Upstream commit 8a4659be08576141f47d47d94130eb148cb5f0df ]

If the OCC is not initialized and responds as such, the driver
should continue waiting for a valid response until the timeout
expires.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Fixes: 7ed98dddb7 ("fsi: Add On-Chip Controller (OCC) driver")
Link: https://lore.kernel.org/r/20210209171235.20624-2-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:41 +02:00
Eddie James
af3d7f9e26 fsi: scom: Reset the FSI2PIB engine for any error
[ Upstream commit a5c317dac5567206ca7b6bc9d008dd6890c8bced ]

The error bits in the FSI2PIB status are only cleared by a reset. So
the driver needs to perform a reset after seeing any of the FSI2PIB
errors, otherwise subsequent operations will also look like failures.

Fixes: 6b293258cd ("fsi: scom: Major overhaul")
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20210329151344.14246-1-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:41 +02:00
Colin Ian King
446eed9c85 fsi: core: Fix return of error values on failures
[ Upstream commit 910810945707fe9877ca86a0dca4e585fd05e37b ]

Currently the cfam_read and cfam_write functions return the provided
number of bytes given in the count parameter and not the error return
code in variable rc, hence all failures of read/writes are being
silently ignored. Fix this by returning the error code in rc.

Addresses-Coverity: ("Unused value")
Fixes: d1dcd67825 ("fsi: Add cfam char devices")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Jeremy Kerr <jk@ozlabs.org>
Link: https://lore.kernel.org/r/20210603122812.83587-1-colin.king@canonical.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:41 +02:00
Andreas Kemnade
d22bef4101 mfd: rn5t618: Fix IRQ trigger by changing it to level mode
[ Upstream commit a1649a5260631979c68e5b2012f60f90300e646f ]

During more massive generation of interrupts, the IRQ got stuck,
and the subdevices did not see any new interrupts. That happens
especially at wonky USB supply in combination with ADC reads.
To fix that trigger the IRQ at level low instead of falling edge.

Fixes: 0c81604516 ("mfd: rn5t618: Add IRQ support")
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:40 +02:00
Randy Dunlap
9b8bfdbc7e mfd: mp2629: Select MFD_CORE to fix build error
[ Upstream commit a933272041d852a1ef1c85f0c18b93e9999a41fa ]

MFD_MP2629 should select MFD_CORE to a prevent build error:

ERROR: modpost: "devm_mfd_add_devices" [drivers/mfd/mp2629.ko] undefined!

Fixes: 0608164645 ("mfd: mp2629: Add support for mps battery charger")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:40 +02:00