Commit Graph

11369 Commits

Author SHA1 Message Date
Greg Kroah-Hartman
42f4891ca2 usb: fixes for v3.12-rc2
Here's first set of fixes for v3.12-rc series, patches have
 been soaking in linux-usb for a while now.
 
 We have the usual sparse and build warnings, a Kconfig fix
 to a mismerge on dwc3 Kconfig, fix for a possible memory leak
 in dwc3, s3c-hsotg won't disconnect when bus goes idle, locking
 fix in mv_u3d_core, endpoint disable fix in f_mass_storage.
 
 We also have one device ID added to dwc3's PCI glue layer in order
 to support Intel's BayTrail devices.
 
 Signed-of-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'fixes-for-v3.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v3.12-rc2

Here's first set of fixes for v3.12-rc series, patches have
been soaking in linux-usb for a while now.

We have the usual sparse and build warnings, a Kconfig fix
to a mismerge on dwc3 Kconfig, fix for a possible memory leak
in dwc3, s3c-hsotg won't disconnect when bus goes idle, locking
fix in mv_u3d_core, endpoint disable fix in f_mass_storage.

We also have one device ID added to dwc3's PCI glue layer in order
to support Intel's BayTrail devices.

Signed-of-by: Felipe Balbi <balbi@ti.com>
2013-09-17 13:00:43 -07:00
Frank Schäfer
7d26a78f62 USB: pl2303: distinguish between original and cloned HX chips
According to Prolific, several (unauthorized) cheap and less functional
clones of the PL2303HX chip are in circulation. [1]
I've had the chance to test such a cloned device and it turned out that
it doesn't support any baud rates above 115200 baud (original: 6 Mbaud)
It also doesn't support the divisior based baud rate encoding method,
so no continuous baud rate adjustment is possible.
Nevertheless, these devices have been working (unintentionally) with
the driver up to commit 61fa8d694b ("pl2303: also use the divisor based
baud rate encoding method for baud rates < 115200 with HX chips"), and
this commit broke support for them.
Fortunately, it is pretty simple to distinguish between the original
and the cloned HX chips, so I've added a check and an extra chip type
to keep the clones working.
The same check is used by the latest Prolific Windows driver, so it
should be solid.

[1] http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=225&pcid=41

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-09-17 09:36:10 -07:00
Dave Jones
dfe2902032 USB: Faraday fotg210: fix email addresses
Update the MODULE_AUTHOR field of the Faraday OTG drivers to reflect
current maintainers email address.

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-09-17 09:36:10 -07:00
Dave Jones
dc298a218b USB: fix typo in usb serial simple driver Kconfig
Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-09-17 09:36:10 -07:00
Greg Kroah-Hartman
3b8d7321ed Revert "USB: EHCI: support running URB giveback in tasklet context"
This reverts commit 428aac8a81.

This isn't quite ready for 3.12, we need some more EHCI driver changes
that are just now showing up.  So revert this for now, and queue it up
later for 3.13.

Reported-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-09-17 09:36:10 -07:00
Chanho Park
d3675e3a48 usb: s3c-hsotg: do not disconnect gadget when receiving ErlySusp intr
DWC2 databook indicates if the core sets "ErlySusp" bit, an idle state has been
detected on the USB for 3 ms. This situation can be occurred when waiting
a request from user daemon. So, we should keep the connection between udc and
gadget even though this interrupt is occurred.

Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-09-17 11:08:46 -05:00
Marek Szyprowski
c8c10253d8 usb: s3c-hsotg: fix unregistration function
After driver conversion to udc_start/udc_stop infrastructure (commit
"usb:hsotg:samsung: Use new udc_start and udc_stop callbacks"
f65f0f1098) the gadget unregistration function is almost always called
with 'driver' parameter being NULL, what caused that the unregistration
code has not been executed at all. This is a leftover from the earlier
verison of this function (which used simple start/stop interface), where
driver parameter was obligatory.

This patch removes the NULL check for the 'driver' pointer and removes
all dereferences of it. It also moves disabling voltage regulators out
of the atomic context, because handling regulators (which are usually
i2c devices) might require sleeping.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-09-17 11:08:45 -05:00
Peter Oh
7f2ccc8cb2 usb: gadget: f_mass_storage: reset endpoint driver data when disabled
Gadgets endpoint driver data is a criteria to judge that
whether the endpoints are in use or not. When gadget gets
assigned an endpoint from endpoint list, they check its
driver data if the driver data is NULL.

If the driver data is not NULL then they regard it as in use.
Therefore all of gadgets should reset their endpoints driver
data to NULL as they are disabled. Otherwise it causes a leak
of endpoint resource.

Signed-off-by: Peter Oh <poh@broadcom.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-09-17 11:07:14 -05:00
Sachin Kamat
660479aad1 usb: host: fsl-mph-dr-of: Staticize local symbols
Local symbols used in this file are made static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-09-17 11:06:57 -05:00
Sachin Kamat
5c18a3636f usb: gadget: f_eem: Staticize eem_alloc
'eem_alloc' is local to this file. Make it static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-09-17 11:06:50 -05:00
Sachin Kamat
0f0392f245 usb: gadget: f_ecm: Staticize ecm_alloc
'ecm_alloc' is local to this file. Make it static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-09-17 11:06:44 -05:00
Sachin Kamat
1b97be8ce4 usb: phy: omap-usb3: Fix return value
The function returns a pointer. Hence return NULL instead of 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-09-17 11:05:30 -05:00
David Cohen
e1f804676a usb: dwc3: gadget: avoid memory leak when failing to allocate all eps
If dwc3_gadget_init_endpoint() fails after allocate some of the eps, we
need to free their memory to avoid leak.

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-09-17 11:05:01 -05:00
Heikki Krogerus
bbaa7c81e6 usb: dwc3: remove extcon dependency
It is required by the OMAP glue driver, but it already depends
on it. The core driver should not depend on it. This will
allow the use of the PCI glue driver again.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-09-17 11:04:03 -05:00
Chen Gang
780cc0f370 usb: gadget: add '__ref' for rndis_config_register() and cdc_config_register()
They are only called by '__ref' function multi_bind(), and they will
call '__init' functions, so recommend to let them '__ref' too.

The related warnings:

  WARNING: drivers/usb/gadget/g_multi.o(.text+0xded6): Section mismatch in reference from the variable .LM2921 to the variable .init.text:_rndis_do_config
  The function .LM2921() references
  the variable __init _rndis_do_config.
  This is often because .LM2921 lacks a __init
  annotation or the annotation of _rndis_do_config is wrong.

  WARNING: drivers/usb/gadget/g_multi.o(.text+0xdf16): Section mismatch in reference from the variable .LM2953 to the variable .init.text:_cdc_do_config
  The function .LM2953() references
  the variable __init _cdc_do_config.
  This is often because .LM2953 lacks a __init
  annotation or the annotation of _cdc_do_config is wrong.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-09-17 10:59:19 -05:00
Heikki Krogerus
b62cd96de3 usb: dwc3: pci: add support for BayTrail
Add PCI id for Intel BayTrail.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-09-17 10:54:54 -05:00
Andrzej Pietrasiewicz
d2ff405960 usb: gadget: cdc2: fix conversion to new interface of f_ecm
This fixes commit a38a275030
(usb: gadget: cdc2: convert to new interface of f_ecm)

The invocation of usb_get_function_instance() is in cdc_bind()
and should not be repeated in cdc_do_config().

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-09-17 10:38:52 -05:00
Alan Stern
5f5610f69b usb: gadget: fix a bug and a WARN_ON in dummy-hcd
This patch fixes a NULL pointer dereference and a WARN_ON in
dummy-hcd.  These things were the result of moving to the UDC core
framework, and possibly of changes to that framework.

Now unloading a gadget driver causes the UDC to be stopped after the
gadget driver is unbound, not before.  Therefore the "driver" argument
to dummy_udc_stop() can be NULL, so we must not try to print the
driver's name without checking first.

Also, the UDC framework automatically unregisters the gadget when the
UDC is deleted.  Therefore a sysfs attribute file attached to the
gadget must be removed before the UDC is deleted, not after.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: <stable@vger.kernel.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-09-17 10:38:51 -05:00
Alexey Khoroshilov
2389df458b usb: gadget: mv_u3d_core: fix violation of locking discipline in mv_u3d_ep_disable()
mv_u3d_nuke() expects to be calles with ep->u3d->lock held,
because mv_u3d_done() does. But mv_u3d_ep_disable() calls it
without lock that can lead to unpleasant consequences.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-09-17 10:38:48 -05:00
Linus Torvalds
9bf12df31f Merge git://git.kvack.org/~bcrl/aio-next
Pull aio changes from Ben LaHaise:
 "First off, sorry for this pull request being late in the merge window.
  Al had raised a couple of concerns about 2 items in the series below.
  I addressed the first issue (the race introduced by Gu's use of
  mm_populate()), but he has not provided any further details on how he
  wants to rework the anon_inode.c changes (which were sent out months
  ago but have yet to be commented on).

  The bulk of the changes have been sitting in the -next tree for a few
  months, with all the issues raised being addressed"

* git://git.kvack.org/~bcrl/aio-next: (22 commits)
  aio: rcu_read_lock protection for new rcu_dereference calls
  aio: fix race in ring buffer page lookup introduced by page migration support
  aio: fix rcu sparse warnings introduced by ioctx table lookup patch
  aio: remove unnecessary debugging from aio_free_ring()
  aio: table lookup: verify ctx pointer
  staging/lustre: kiocb->ki_left is removed
  aio: fix error handling and rcu usage in "convert the ioctx list to table lookup v3"
  aio: be defensive to ensure request batching is non-zero instead of BUG_ON()
  aio: convert the ioctx list to table lookup v3
  aio: double aio_max_nr in calculations
  aio: Kill ki_dtor
  aio: Kill ki_users
  aio: Kill unneeded kiocb members
  aio: Kill aio_rw_vect_retry()
  aio: Don't use ctx->tail unnecessarily
  aio: io_cancel() no longer returns the io_event
  aio: percpu ioctx refcount
  aio: percpu reqs_available
  aio: reqs_active -> reqs_available
  aio: fix build when migration is disabled
  ...
2013-09-13 10:55:58 -07:00
Martin Schwidefsky
0244ad004a Remove GENERIC_HARDIRQ config option
After the last architecture switched to generic hard irqs the config
options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code
for !CONFIG_GENERIC_HARDIRQS can be removed.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-09-13 15:09:52 +02:00
Linus Torvalds
39eda2aba6 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc updates from Ben Herrenschmidt:
 "Here's the powerpc batch for this merge window.  Some of the
  highlights are:

   - A bunch of endian fixes ! We don't have full LE support yet in that
     release but this contains a lot of fixes all over arch/powerpc to
     use the proper accessors, call the firmware with the right endian
     mode, etc...

   - A few updates to our "powernv" platform (non-virtualized, the one
     to run KVM on), among other, support for bridging the P8 LPC bus
     for UARTs, support and some EEH fixes.

   - Some mpc51xx clock API cleanups in preparation for a clock API
     overhaul

   - A pile of cleanups of our old math emulation code, including better
     support for using it to emulate optional FP instructions on
     embedded chips that otherwise have a HW FPU.

   - Some infrastructure in selftest, for powerpc now, but could be
     generalized, initially used by some tests for our perf instruction
     counting code.

   - A pile of fixes for hotplug on pseries (that was seriously
     bitrotting)

   - The usual slew of freescale embedded updates, new boards, 64-bit
     hiberation support, e6500 core PMU support, etc..."

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (146 commits)
  powerpc: Correct FSCR bit definitions
  powerpc/xmon: Fix printing of set of CPUs in xmon
  powerpc/pseries: Move lparcfg.c to platforms/pseries
  powerpc/powernv: Return secondary CPUs to firmware on kexec
  powerpc/btext: Fix CONFIG_PPC_EARLY_DEBUG_BOOTX on ppc32
  powerpc: Cleanup handling of the DSCR bit in the FSCR register
  powerpc/pseries: Child nodes are not detached by dlpar_detach_node
  powerpc/pseries: Add mising of_node_put in delete_dt_node
  powerpc/pseries: Make dlpar_configure_connector parent node aware
  powerpc/pseries: Do all node initialization in dlpar_parse_cc_node
  powerpc/pseries: Fix parsing of initial node path in update_dt_node
  powerpc/pseries: Pack update_props_workarea to map correctly to rtas buffer header
  powerpc/pseries: Fix over writing of rtas return code in update_dt_node
  powerpc/pseries: Fix creation of loop in device node property list
  powerpc: Skip emulating & leave interrupts off for kernel program checks
  powerpc: Add more exception trampolines for hypervisor exceptions
  powerpc: Fix location and rename exception trampolines
  powerpc: Add more trap names to xmon
  powerpc/pseries: Add a warning in the case of cross-cpu VPA registration
  powerpc: Update the 00-Index in Documentation/powerpc
  ...
2013-09-06 10:49:42 -07:00
Linus Torvalds
542a086ac7 Driver core patches for 3.12-rc1
Here's the big driver core pull request for 3.12-rc1.
 
 Lots of tiny changes here fixing up the way sysfs attributes are
 created, to try to make drivers simpler, and fix a whole class race
 conditions with creations of device attributes after the device was
 announced to userspace.
 
 All the various pieces are acked by the different subsystem maintainers.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core patches from Greg KH:
 "Here's the big driver core pull request for 3.12-rc1.

  Lots of tiny changes here fixing up the way sysfs attributes are
  created, to try to make drivers simpler, and fix a whole class race
  conditions with creations of device attributes after the device was
  announced to userspace.

  All the various pieces are acked by the different subsystem
  maintainers"

* tag 'driver-core-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (119 commits)
  firmware loader: fix pending_fw_head list corruption
  drivers/base/memory.c: introduce help macro to_memory_block
  dynamic debug: line queries failing due to uninitialized local variable
  sysfs: sysfs_create_groups returns a value.
  debugfs: provide debugfs_create_x64() when disabled
  rbd: convert bus code to use bus_groups
  firmware: dcdbas: use binary attribute groups
  sysfs: add sysfs_create/remove_groups for when SYSFS is not enabled
  driver core: add #include <linux/sysfs.h> to core files.
  HID: convert bus code to use dev_groups
  Input: serio: convert bus code to use drv_groups
  Input: gameport: convert bus code to use drv_groups
  driver core: firmware: use __ATTR_RW()
  driver core: core: use DEVICE_ATTR_RO
  driver core: bus: use DRIVER_ATTR_WO()
  driver core: create write-only attribute macros for devices and drivers
  sysfs: create __ATTR_WO()
  driver-core: platform: convert bus code to use dev_groups
  workqueue: convert bus code to use dev_groups
  MEI: convert bus code to use dev_groups
  ...
2013-09-03 11:37:15 -07:00
Linus Torvalds
1d1fdd95df Char/Misc patches for 3.12-rc1
Here is the big char/misc driver pull request for 3.12-rc1
 
 Lots of driver updates all over the char/misc tree, full details in the
 shortlog below.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc patches from Greg KH:
 "Here is the big char/misc driver pull request for 3.12-rc1

  Lots of driver updates all over the char/misc tree, full details in
  the shortlog"

* tag 'char-misc-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (62 commits)
  drivers: uio: Kconfig: add MMU dependancy for UIO
  drivers: uio: Add driver for Humusoft MF624 DAQ PCI card
  drivers: uio_pdrv_genirq: use dev_get_platdata()
  drivers: uio_pruss: use dev_get_platdata()
  drivers: uio_dmem_genirq: use dev_get_platdata()
  drivers: parport: Kconfig: exclude h8300 for PARPORT_PC
  drivers: misc: ti-st: fix potential race if st_kim_start fails
  Drivers: hv: vmbus: Do not attempt to negoatiate a new version prematurely
  misc: vmw_balloon: Remove braces to fix build for clang.
  Drivers: hv: vmbus: Fix a bug in the handling of channel offers
  vme: vme_ca91cx42.c: fix to pass correct device identity to free_irq()
  VMCI: Add support for virtual IOMMU
  VMCI: Remove non-blocking/pinned queuepair support
  uio: uio_pruss: remove unnecessary platform_set_drvdata()
  parport: amiga: remove unnecessary platform_set_drvdata()
  vme: vme_vmivme7805.c: add missing __iomem annotation
  vme: vme_ca91cx42.c: add missing __iomem annotation
  vme: vme_tsi148.c: add missing __iomem annotation
  drivers/misc/hpilo: Correct panic when an AUX iLO is detected
  uio: drop unused vma_count member in uio_device struct
  ...
2013-09-03 11:36:27 -07:00
Linus Torvalds
b3b49114c8 USB patches for 3.12-rc1
Here's the big USB driver pull request for 3.12-rc1
 
 Lots of USB driver fixes and updates.  Nothing major, just the normal
 xhci, gadget, and other driver changes.  Full details in the shortlog.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB patches from Greg KH:
 "Here's the big USB driver pull request for 3.12-rc1

  Lots of USB driver fixes and updates.  Nothing major, just the normal
  xhci, gadget, and other driver changes.  Full details in the shortlog"

* tag 'usb-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (352 commits)
  usbcore: fix incorrect type in assignment in descriptors_changed()
  usbcore: compare and release one bos descriptor in usb_reset_and_verify_device()
  ehci: remove debugging statement with ehci statistics in ehci_stop()
  ehci: remove duplicate debug_async_open() prototype in ehci-dbg.c
  ehci: enable debugging code when CONFIG_DYNAMIC_DEBUG is set
  ehci: remove ehci_vdbg() verbose debugging statements
  Documentation sysfs-bus-usb: Document which files are used by libusb
  Documentation sysfs-bus-usb: Document the speed file used by libusb
  Documentation sysfs-bus-usb: Move files with known users to stable
  USB: fix build error when CONFIG_PM_SLEEP isn't enabled
  usb: r8a66597-hcd: use platform_{get,set}_drvdata()
  usb: phy-tegra-usb: use platform_{get,set}_drvdata()
  usb: acm gadget: Null termintate strings table
  dma: cppi41: off by one in desc_to_chan()
  xhci: Fix warning introduced by disabling runtime PM.
  dev-core: fix build break when DEBUG is enabled
  USB: OHCI: Allow runtime PM without system sleep
  usb: ohci-at91: remove unnecessary dev_set_drvdata()
  usb: renesas_usbhs: use platform_{get,set}_drvdata()
  usb: fotg210-udc: use platform_{get,set}_drvdata()
  ...
2013-09-03 11:35:32 -07:00
Xenia Ragiadakou
b9a1048137 usbcore: fix incorrect type in assignment in descriptors_changed()
This patch fixes the incorrect assignment of a variable with type 'le16'
to a variable with type 'unsigned int'.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-30 18:50:43 -07:00
Xenia Ragiadakou
e3376d6c87 usbcore: compare and release one bos descriptor in usb_reset_and_verify_device()
In usb_reset_and_verify_device(), hub_port_init() allocates a new bos
descriptor to hold the value read by the device. The new bos descriptor
has to be compared with the old one in order to figure out if device 's
firmware has changed in which case the device has to be reenumerated.
In the original code, none of the two descriptors was deallocated leading
to memory leaks.

This patch compares the old bos descriptor with the new one to detect change
in firmware and releases the newly allocated bos descriptor to prevent memory
leak.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Reported-by: Martin MOKREJS <mmokrejs@gmail.com>
Tested-by: Martin MOKREJS <mmokrejs@gmail.com>
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-30 12:02:08 -07:00
Xenia Ragiadakou
eb5ea7300d ehci: remove debugging statement with ehci statistics in ehci_stop()
This patch removes the ehci statictics information output in ehci_stop()
because they do not provide interesting info. At any case, the current
statistics can be viewed by reading the 'registers' file in debugfs.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-30 12:02:08 -07:00
Xenia Ragiadakou
15532f4761 ehci: remove duplicate debug_async_open() prototype in ehci-dbg.c
This patch removes the duplicate of debug_async_open() prototype following
three lines below the debug_async_open() declaration.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-30 12:02:08 -07:00
Xenia Ragiadakou
1512c91f1c ehci: enable debugging code when CONFIG_DYNAMIC_DEBUG is set
The debugging code for ehci is enabled to run if the DEBUG flag is defined.
This patch enables the debugging code also when the kernel is configured
with dynamic debugging on.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-30 12:02:07 -07:00
Xenia Ragiadakou
fea26ef095 ehci: remove ehci_vdbg() verbose debugging statements
This patch removes ehci_vdbg debugging statements from EHCI host controller
driver because they produce too much information, lowering the signal to noise
ratio when debugging, and because they are not used anymore.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-30 12:02:07 -07:00
Libo Chen
9b1b0162e9 usb: r8a66597-hcd: use platform_{get,set}_drvdata()
Use the wrapper functions for getting and setting the driver data using
platform_device instead of using dev_{get,set}_drvdata() with &of->dev,
so we can directly pass a struct platform_device.

Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-30 11:11:35 -07:00
Libo Chen
72031b524c usb: phy-tegra-usb: use platform_{get,set}_drvdata()
Use the wrapper functions for getting and setting the driver data using
platform_device instead of using dev_{get,set}_drvdata() with &of->dev,
so we can directly pass a struct platform_device.

Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-30 11:11:35 -07:00
Graham Williams
d257221854 usb: acm gadget: Null termintate strings table
The gadget strings table should be null terminated.
usb_gadget_get_string() loops through the table
expecting a null at the end of the list.

Signed-off-by: Graham Williams <gwilli@broadcom.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-30 11:10:36 -07:00
Greg Kroah-Hartman
ff49896aa4 xhci: Fix build breakage and new warnings.
Hi Greg,
 
 This first patch should fix the build breakage Sedat Dilek reported.
 Apologizes for not including this patch before commit
 0730d52a86 "xhci:prevent "callbacks suppressed"
 when debug is not enabled"
 
 The second patch fixes a new build warning introduced by commit
 c8476fb855 "usb: xhci: Disable runtime PM suspend
 for quirky controllers", which was caught by the 0day build system.
 
 Sarah Sharp
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Merge tag 'for-usb-next-2013-08-27-15-07' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-next

Sarah writes:

xhci: Fix build breakage and new warnings.

Hi Greg,

This first patch should fix the build breakage Sedat Dilek reported.
Apologizes for not including this patch before commit
0730d52a86 "xhci:prevent "callbacks suppressed"
when debug is not enabled"

The second patch fixes a new build warning introduced by commit
c8476fb855 "usb: xhci: Disable runtime PM suspend
for quirky controllers", which was caught by the 0day build system.

Sarah Sharp
2013-08-28 15:30:03 -07:00
Sarah Sharp
e7ecf069d4 xhci: Fix warning introduced by disabling runtime PM.
The 0day build server caught a new build warning that is triggered when
CONFIG_USB_DEFAULT_PERSIST is turned on:

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci.git for-usb-next
head:   0730d52a86
commit: c8476fb855 [1/3] usb: xhci: Disable runtime PM suspend for quirky controllers
config: i386-randconfig-r6-0826 (attached as .config)

All warnings:

   drivers/usb/host/xhci.c: In function 'xhci_free_dev':
>> drivers/usb/host/xhci.c:3560:17: warning: unused variable 'dev' [-Wunused-variable]
     struct device *dev = hcd->self.controller;
                    ^
   drivers/usb/host/xhci.c: In function 'xhci_alloc_dev':
>> drivers/usb/host/xhci.c:3648:17: warning: unused variable 'dev' [-Wunused-variable]
     struct device *dev = hcd->self.controller;
                    ^

vim +/dev +3560 drivers/usb/host/xhci.c

  3554   * disabled.  Free any HC data structures associated with that device.
  3555   */
  3556  void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev)
  3557  {
  3558          struct xhci_hcd *xhci = hcd_to_xhci(hcd);
  3559          struct xhci_virt_device *virt_dev;
> 3560          struct device *dev = hcd->self.controller;
  3561          unsigned long flags;
  3562          u32 state;
  3563          int i, ret;
  3564
  3565  #ifndef CONFIG_USB_DEFAULT_PERSIST
  3566          /*
  3567           * We called pm_runtime_get_noresume when the device was attached.
  3568           * Decrement the counter here to allow controller to runtime suspend
  3569           * if no devices remain.
  3570           */
  3571          if (xhci->quirks & XHCI_RESET_ON_RESUME)
  3572                  pm_runtime_put_noidle(dev);
  3573  #endif
  3574
...
  3641  /*
  3642   * Returns 0 if the xHC ran out of device slots, the Enable Slot command
  3643   * timed out, or allocating memory failed.  Returns 1 on success.
  3644   */
  3645  int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev)
  3646  {
  3647          struct xhci_hcd *xhci = hcd_to_xhci(hcd);
> 3648          struct device *dev = hcd->self.controller;
  3649          unsigned long flags;
  3650          int timeleft;
  3651          int ret;

Fix this.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Shawn Nematbakhsh <shawnn@chromium.org>
2013-08-28 10:55:47 -07:00
Alan Stern
69820e01aa USB: OHCI: Allow runtime PM without system sleep
Since ohci-hcd supports runtime PM, the .pm field in its pci_driver
structure should be protected by CONFIG_PM rather than
CONFIG_PM_SLEEP.

Without this change, OHCI controllers won't do runtime suspend if
system suspend or hibernation isn't enabled.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
cc: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-27 21:36:46 -07:00
Libo Chen
d143a8edcd usb: ohci-at91: remove unnecessary dev_set_drvdata()
Unnecessary dev_set_drvdata() is removed, because the driver core
clears the driver data to NULL after device_release or on probe failure.

Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-27 21:36:46 -07:00
Libo Chen
c9a0552e8d usb: renesas_usbhs: use platform_{get,set}_drvdata()
Use the wrapper functions for getting and setting the driver data using
platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev,
so we can directly pass a struct platform_device.

Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-27 21:35:23 -07:00
Libo Chen
3cb40a590e usb: fotg210-udc: use platform_{get,set}_drvdata()
Use the wrapper functions for getting and setting the driver data using
platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev,
so we can directly pass a struct platform_device.

Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-27 21:35:23 -07:00
Greg Kroah-Hartman
752e69555d usb: patches for v3.12 merge window (part 2)
Here's a set of important fixes for v3.12 merge
 window which have been pending in the mailing list
 for quite some time.
 
 We have use-after-free fixes, signedness fixes,
 more of HAS_DMA dependencies, fixes for NULL pointer
 deferences, build fixes and some other fixes to
 the musb driver caused by recent patches.
 
 Patches are quite small and contain valuable fixes
 which will give us a much better -rc1 release.
 
 Please consider merging
 
 Signed-of-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v3.12-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v3.12 merge window (part 2)

Here's a set of important fixes for v3.12 merge
window which have been pending in the mailing list
for quite some time.

We have use-after-free fixes, signedness fixes,
more of HAS_DMA dependencies, fixes for NULL pointer
deferences, build fixes and some other fixes to
the musb driver caused by recent patches.

Patches are quite small and contain valuable fixes
which will give us a much better -rc1 release.

Please consider merging

Signed-of-by: Felipe Balbi <balbi@ti.com>
2013-08-27 14:07:31 -07:00
Greg Kroah-Hartman
f2e0ae93cc USB storage: audit sysfs attribute permissions
Convert the usbsorage sysfs attribute to use the _RW macro to make it
easier to determine the permissions for the file.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-27 13:13:07 -07:00
Lee Jones
0f2aa8caea usb: musb: ux500: Add check for NULL board data
Dan Carpenter's automatic Smatch checker found an anomaly in the ux500
MUSB driver, whereby board data was checked before use in all but one
occasion. It is believed that it needs to be checked every time.

Smatch complaint:
  drivers/usb/musb/ux500_dma.c:335 ux500_dma_controller_start()
         error: we previously assumed 'data' could be null (see line 313)

Cc: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-27 15:05:39 -05:00
Dan Carpenter
ffb62a14c7 usb: gadget: double unlocks on error in atmel_usba_start()
The "goto out" statements were wrong.  We aren't holding any locks at
that point so we should return directly.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-27 15:05:35 -05:00
Dan Carpenter
0f82768406 usb: phy: signedness bugs in suspend/resume functions
"ret" needs to be signed for the error handling to work.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-27 15:05:30 -05:00
Dan Carpenter
df4989954a usb: gadget: gadgetfs: potential use after free in unbind()
ffs_data_put() can sometimes free "ffs" so I have moved the call down
a line below the dereference.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-27 15:03:32 -05:00
Dan Carpenter
1826e9b1bd usb: gadget: gadgetfs: use after free in dev_release()
The call to put_dev() releases "dev".  Hopefully, we don't need to set
the state to STATE_DEV_DISABLED anyway so I have removed those lines.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-27 15:03:28 -05:00
Greg Kroah-Hartman
62f4b242ca xhci: Bug fixes for 3.12.
Hi Greg,
 
 Here's three low-priority bug fixes that should be queued for 3.12.
 They disable runtime PM for hosts that need the XHCI_RESET_ON_RESUME
 quirk, fix USB 2.0 Link PM on hosts that don't have BESL support, and
 prevent a bunch of log spam.
 
 Please pull into usb-next for 3.12.
 
 Sarah Sharp
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Merge tag 'for-usb-next-2013-08-27' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-next

Sarah writes:

xhci: Bug fixes for 3.12.

Hi Greg,

Here's three low-priority bug fixes that should be queued for 3.12.
They disable runtime PM for hosts that need the XHCI_RESET_ON_RESUME
quirk, fix USB 2.0 Link PM on hosts that don't have BESL support, and
prevent a bunch of log spam.

Please pull into usb-next for 3.12.

Sarah Sharp
2013-08-27 13:02:57 -07:00
Sachin Kamat
c078a37652 usb: dwc3: Remove duplicate inclusion of otg.h
otg.h header file was included twice.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-27 15:02:33 -05:00
Anatolij Gustschin
9473e8cfc7 usb: phy: fix build breakage
Commit 94ae9843 (usb: phy: rename all phy drivers to phy-$name-usb.c)
renamed drivers/usb/phy/otg_fsm.h to drivers/usb/phy/phy-fsm-usb.h
but changed drivers/usb/phy/phy-fsm-usb.c to include not existing
"phy-otg-fsm.h" instead of new "phy-fsm-usb.h". This breaks building:
  ...
  drivers/usb/phy/phy-fsm-usb.c:32:25: fatal error: phy-otg-fsm.h: No such file or directory
  compilation terminated.
  make[3]: *** [drivers/usb/phy/phy-fsm-usb.o] Error 1

This commit also missed to modify drivers/usb/phy/phy-fsl-usb.h
to include new "phy-fsm-usb.h" instead of "otg_fsm.h" resulting
in another build breakage:
  ...
  In file included from drivers/usb/phy/phy-fsl-usb.c:46:0:
  drivers/usb/phy/phy-fsl-usb.h:18:21: fatal error: otg_fsm.h: No such file or directory
  compilation terminated.
  make[3]: *** [drivers/usb/phy/phy-fsl-usb.o] Error 1

Fix both issues.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: stable@vger.kernel.org
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-08-27 15:02:32 -05:00