Commit Graph

469098 Commits

Author SHA1 Message Date
Dmitry Monakhov
6603120e96 ext4: update i_disksize coherently with block allocation on error path
In case of delalloc block i_disksize may be less than i_size. So we
have to update i_disksize each time we allocated and submitted some
blocks beyond i_disksize.  We weren't doing this on the error paths,
so fix this.

testcase: xfstest generic/019

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
2014-08-28 22:20:41 -04:00
Will Deacon
5b75a6af11 arm64: perf: don't rely on layout of pt_regs when grabbing sp or pc
The current perf_regs code relies on sp and pc sitting just off the end
of the pt_regs->regs array. This is ugly and fragile, so this patch
checks for these register explicitly and returns the appropriate field.

Acked-by: Jean Pihet <jean.pihet@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-08-28 20:01:50 +01:00
Will Deacon
85487edd25 arm64: ptrace: fix compat reg getter/setter return values
copy_{to,from}_user return the number of bytes remaining on failure, not
an error code.

This patch returns -EFAULT when the copy operation didn't complete,
rather than expose the number of bytes not copied directly to userspace.

Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-08-28 20:01:42 +01:00
Will Deacon
27d7ff273c arm64: ptrace: fix compat hardware watchpoint reporting
I'm not sure what I was on when I wrote this, but when iterating over
the hardware watchpoint array (hbp_watch_array), our index is off by
ARM_MAX_BRP, so we walk off the end of our thread_struct...

... except, a dodgy condition in the loop means that it never executes
at all (bp cannot be NULL).

This patch fixes the code so that we remove the bp check and use the
correct index for accessing the watchpoint structures.

Cc: <stable@vger.kernel.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-08-28 20:01:36 +01:00
Mikulas Patocka
d49ec52ff6 dm crypt: fix access beyond the end of allocated space
The DM crypt target accesses memory beyond allocated space resulting in
a crash on 32 bit x86 systems.

This bug is very old (it dates back to 2.6.25 commit 3a7f6c990a "dm
crypt: use async crypto").  However, this bug was masked by the fact
that kmalloc rounds the size up to the next power of two.  This bug
wasn't exposed until 3.17-rc1 commit 298a9fa08a ("dm crypt: use per-bio
data").  By switching to using per-bio data there was no longer any
padding beyond the end of a dm-crypt allocated memory block.

To minimize allocation overhead dm-crypt puts several structures into one
block allocated with kmalloc.  The block holds struct ablkcipher_request,
cipher-specific scratch pad (crypto_ablkcipher_reqsize(any_tfm(cc))),
struct dm_crypt_request and an initialization vector.

The variable dmreq_start is set to offset of struct dm_crypt_request
within this memory block.  dm-crypt allocates the block with this size:
cc->dmreq_start + sizeof(struct dm_crypt_request) + cc->iv_size.

When accessing the initialization vector, dm-crypt uses the function
iv_of_dmreq, which performs this calculation: ALIGN((unsigned long)(dmreq
+ 1), crypto_ablkcipher_alignmask(any_tfm(cc)) + 1).

dm-crypt allocated "cc->iv_size" bytes beyond the end of dm_crypt_request
structure.  However, when dm-crypt accesses the initialization vector, it
takes a pointer to the end of dm_crypt_request, aligns it, and then uses
it as the initialization vector.  If the end of dm_crypt_request is not
aligned on a crypto_ablkcipher_alignmask(any_tfm(cc)) boundary the
alignment causes the initialization vector to point beyond the allocated
space.

Fix this bug by calculating the variable iv_size_padding and adding it
to the allocated size.

Also correct the alignment of dm_crypt_request.  struct dm_crypt_request
is specific to dm-crypt (it isn't used by the crypto subsystem at all),
so it is aligned on __alignof__(struct dm_crypt_request).

Also align per_bio_data_size on ARCH_KMALLOC_MINALIGN, so that it is
aligned as if the block was allocated with kmalloc.

Reported-by: Krzysztof Kolasa <kkolasa@winsoft.pl>
Tested-by: Milan Broz <gmazyland@gmail.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2014-08-28 14:24:09 -04:00
Robert Coulson
39c627a084 hwmon: (ds1621) Update zbits after conversion rate change
After the conversion rate is changed, the zbits are not updated,
but should be, since they are used later in the set_temp function.

Fixes: a50d9a4d9a ("hwmon: (ds1621) Fix temperature rounding operations")
Reported-by: Murat Ilsever <murat.ilsever@gmail.com>
Signed-off-by: Robert Coulson <rob.coulson@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-08-28 11:18:47 -07:00
Paul Handrigan
fb18cd2a62 ASoC: cs4265: Fix setting of functional mode and clock divider
Reported-by: Zoltán Szenczi <zoltan@raspberrypi.org>
Signed-off-by: Paul Handrigan <Paul.Handrigan@cirrus.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
2014-08-28 19:01:12 +01:00
Paul Handrigan
c98853aec1 ASoC: cs4265: Fix clock rates in clock map table
Reported-by: Zoltán Szenczi <zoltan@raspberrypi.org>
Signed-off-by: Paul Handrigan <Paul.Handrigan@cirrus.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
2014-08-28 19:01:01 +01:00
Linus Torvalds
59753a8054 One simple fix to invalidate GPIO non-request.
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Merge tag 'backlight-fixes-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight

Pull backlight fix from Lee Jones:
 "One simple fix to invalidate GPIO non-request"

* tag 'backlight-fixes-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
  pwm-backlight: Fix bogus request for GPIO#0 when instantiated from DT
2014-08-28 10:47:10 -07:00
Linus Torvalds
2db3cff2d3 Couple of simple fixes due for the 3.17 rcs
(and a sneaky document addition that slipped from the previous pull-request)
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Merge tag 'mfd-fixes-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull mfd fixes from Lee Jones:
 "Couple of simple fixes due for the 3.17 rcs

  (and a sneaky document addition that slipped from the previous
  pull-request)"

* tag 'mfd-fixes-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
  mfd: twl4030-power: Fix PM idle pin configuration to not conflict with regulators
  mfd: tc3589x: Add device tree bindings
  mfd: ab8500-core: Use 'ifdef' for config options
  mfd: htc-i2cpld: Fix %d confusingly prefixed with 0x in format string
  mfd: omap-usb-host: Fix %d confusingly prefixed with 0x in format string
2014-08-28 10:46:25 -07:00
Linus Torvalds
0caf14e66a Pin control fixes for the v3.17 series, only driver fixes:
- SH-PFC (Renesas) r8a7791 CAN bus pin group problem
 - Rockchip (GPIO0 configuration)
 - Tegra-xusb (interrupt handling)
 - Exynos (GPIO interrupt locking)
 - Qualcomm (fix misleading example interrupts)
 - Minor non-critical fixes for abx500 and AT91 also sneaked in,
   because I initially intended this pull for post RC-1, hope it's
   still OK.
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Merge tag 'pinctrl-v3.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin-control fixes from Linus Walleij:
 "My first (a bit delayed) pack of pin control fixes for the v3.17
  series, only driver fixes:

   - SH-PFC (Renesas) r8a7791 CAN bus pin group problem
   - Rockchip (GPIO0 configuration)
   - Tegra-xusb (interrupt handling)
   - Exynos (GPIO interrupt locking)
   - Qualcomm (fix misleading example interrupts)
   - minor non-critical fixes for abx500 and AT91 also sneaked in,
     because I initially intended this pull for post RC-1, hope it's
     still OK"

* tag 'pinctrl-v3.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: qcom: apq8064: Correct interrupts in example
  pinctrl: exynos: Lock GPIOs as interrupts when used as EINTs
  pinctrl: pinctrl-at91.c: fix decimal printf format specifiers prefixed with 0x
  pinctrl: abx500: remove useless check
  pinctrl: tegra-xusb: testing wrong variable in probe()
  pinctrl: tegra-xusb: fix an off by one test
  pinctrl: rockchip: fix rk3288 gpio0 configuration
  sh-pfc: r8a7791: fix CAN pin groups
2014-08-28 10:31:29 -07:00
Linus Torvalds
daf543b177 Small dma-buf pull request for 3.17-rc3
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Merge tag 'for-3.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/sumits/dma-buf

Pull dma-buf fixes from Sumit Semwal:
 "The major changes for 3.17 already went via Greg-KH's tree this time
  as well; this is a small pull request for dma-buf - all documentation
  related"

* tag 'for-3.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/sumits/dma-buf:
  dma-buf/fence: Fix one more kerneldoc warning
  dma-buf/fence: Fix a kerneldoc warning
  Documentation/dma-buf-sharing.txt: update API descriptions
2014-08-28 10:30:25 -07:00
Linus Torvalds
521bd5e4d9 sound fixes for 3.17-rc3
Here contains not many exciting changes but just a few minor ones:
 An off-by-one proc write fix, a couple of trivial incldue guard
 fixes, Acer laptop pinconfig fix, and a fix for DSD formats that
 are still rarely used.
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Merge tag 'sound-3.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Here contains not many exciting changes but just a few minor ones: An
  off-by-one proc write fix, a couple of trivial incldue guard fixes,
  Acer laptop pinconfig fix, and a fix for DSD formats that are still
  rarely used"

* tag 'sound-3.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Set up initial pins for Acer Aspire V5
  ALSA: pcm: Fix the silence data for DSD formats
  ALSA: ctxfi: ct20k1reg: Fix typo in include guard
  ALSA: hda: ca0132_regs.h: Fix typo in include guard
  ALSA: core: fix buffer overflow in snd_info_get_line()
2014-08-28 09:44:25 -07:00
Linus Torvalds
6e8f7b09e4 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "Nothing major, one core oops fixes, some radeon oops fixes, some sti
  driver fixups, msm driver fixes and a minor Kconfig update for the ww
  mutex debugging"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/ast: Add missing entry to dclk_table[]
  drm: fix division-by-zero on dumb_create()
  ww-mutex: clarify help text for DEBUG_WW_MUTEX_SLOWPATH
  radeon: Test for PCI root bus before assuming bus->self
  drm/radeon: handle broken disabled rb mask gracefully (6xx/7xx) (v2)
  drm/radeon: save/restore the PD addr on suspend/resume
  drm/msm: Fix missing unlock on error in msm_fbdev_create()
  drm/msm: fix compile error for non-dt builds
  drm/msm/mdp4: request vblank during modeset
  drm/msm: avoid flood of kernel logs on faults
  drm: sti: Add missing dependency on RESET_CONTROLLER
  drm: sti: Make of_device_id array const
  drm: sti: Fix return value check in sti_drm_platform_probe()
  drm: sti: hda: fix return value check in sti_hda_probe()
  drm: sti: hdmi: fix return value check in sti_hdmi_probe()
  drm: sti: tvout: fix return value check in sti_tvout_probe()
2014-08-28 09:40:37 -07:00
Dan Carpenter
922cedbd00 f2fs: simplify by using a literal
We can make the code a bit simpler because we know that "!retry" is
zero.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-08-28 09:25:29 -07:00
Tony Lindgren
daebabd578 mfd: twl4030-power: Fix PM idle pin configuration to not conflict with regulators
Commit 43fef47f94 (mfd: twl4030-power: Add a configuration to turn
off oscillator during off-idle) added support for configuring the PMIC
to cut off resources during deeper idle states to save power.

This however caused regression for n900 display power that needed the
PMIC configuration to be disabled with commit d937678ab6 (ARM: dts:
Revert enabling of twl configuration for n900).

Turns out the root cause of the problem is that we must use
TWL4030_RESCONFIG_UNDEF instead of DEV_GRP_NULL to avoid disabling
regulators that may have been enabled before the init function
for twl4030-power.c runs. With TWL4030_RESCONFIG_UNDEF we let the
regulator framework control the regulators like it should. Here we
need to only configure the sys_clken and sys_off_mode triggers for
the regulators that cannot be done by the regulator framework as
it's not running at that point.

This allows us to enable the PMIC configuration for n900.

Fixes: 43fef47f94 (mfd: twl4030-power: Add a configuration to turn off oscillator during off-idle)

Cc: stable@vger.kernel.org # v3.16
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-08-28 15:57:55 +01:00
Linus Walleij
bc80436033 mfd: tc3589x: Add device tree bindings
This defines the device tree bindings for the Toshiba TC3589x
series of multi-purpose expanders. Only the stuff I can test
is defined: GPIO and keypad. Others may implement more
subdevices further down the road.

This is to complement
commit a435ae1d51
"mfd: Enable the tc3589x for Device Tree" which left off
the definition of the device tree bindings.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-08-28 15:57:54 +01:00
Toshiaki Makita
7b5af5cffc cfq-iosched: Add comments on update timing of weight
Explain that weight has to be updated on activation.
This complements previous fix e15693ef18 ("cfq-iosched: Fix wrong
children_weight calculation").

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-08-28 08:16:29 -06:00
Pranith Kumar
11ed7f934c rcu: Make nocb leader kthreads process pending callbacks after spawning
The nocb callbacks generated before the nocb kthreads are spawned are
enqueued in the nocb queue for later processing. Commit fbce7497ee ("rcu:
Parallelize and economize NOCB kthread wakeups") introduced nocb leader kthreads
which checked the nocb_leader_wake flag to see if there were any such pending
callbacks. A case was reported in which newly spawned leader kthreads were not
processing the pending callbacks as this flag was not set, which led to a boot
hang.

The following commit ensures that the newly spawned nocb kthreads process the
pending callbacks by allowing the kthreads to run immediately after spawning
instead of waiting. This is done by inverting the logic of nocb_leader_wake
tests to nocb_leader_sleep which allows us to use the default initialization of
this flag to 0 to let the kthreads run.

Reported-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Link: http://www.spinics.net/lists/kernel/msg1802899.html
[ paulmck: Backported to v3.17-rc2. ]
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Amit Shah <amit.shah@redhat.com>
2014-08-28 05:59:59 -07:00
Randy Dunlap
a8dbfeedfe regulator: fix kernel-doc warnings in header files
Fix kernel-doc warnings in regulator header files:

Warning(..//include/linux/regulator/machine.h:140): No description found for parameter 'ramp_disable'
Warning(..//include/linux/regulator/driver.h:279): No description found for parameter 'linear_ranges'
Warning(..//include/linux/regulator/driver.h:279): No description found for parameter 'n_linear_ranges'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-28 09:59:42 +01:00
Hans de Goede
3b264d279e Revert "ideapad-laptop: Disable touchpad interface on Yoga models"
I've received a bug report from a user that the touchpad control part
of the ideapad-laptop ACPI interface does work for him on his
"Lenovo Yoga 2 13", and that this patch causes a regression for him.

Since it did not work for me when I had a "Lenovo Yoga 2 11" in my own
hands (loaned from a friend). It seems that this is a bit of hit and miss.

Since the result of having a false positive here is worse, then the minor
annoyance of a false touchpad disabled messages being shown after suspend /
resume on models (or is it firmware versions?) where the interface does not
work, simply revert the patch.

This reverts commit f79a901331.

Reported-by: GOESSEL Guillaume <g_goessel@outlook.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2014-08-28 00:57:07 -07:00
Darren Hart
e181ba15ed MAINTAINERS: Update platform-drivers-x86 maintainer and tree
Update the general entry for drivers/platform/x86 with myself as
maintainer and point to my tree.

Leave Matthew Garrett as maintainer of the two drivers called out
specifically elsewhere in MAINTAINERS.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
2014-08-28 00:57:03 -07:00
Mathias Krause
bbe1c2740d drm/i915: Remove bogus __init annotation from DMI callbacks
The __init annotations for the DMI callback functions are wrong as this
code can be called even after the module has been initialized, e.g. like
this:

  # echo 1 > /sys/bus/pci/devices/0000:00:02.0/remove
  # modprobe i915
  # echo 1 > /sys/bus/pci/rescan

The first command will remove the PCI device from the kernel's device
list so the second command won't see it right away. But as it registers
a PCI driver it'll see it on the third command. If the system happens to
match one of the DMI table entries we'll try to call a function in long
released memory and generate an Oops, at best.

Fix this by removing the bogus annotation.

Modpost should have caught that one but it ignores section reference
mismatches from the .rodata section. :/

Fixes: 25e341cfc3 ("drm/i915: quirk away broken OpRegion VBT")
Fixes: 8ca4013d70 ("CHROMIUM: i915: Add DMI override to skip CRT...")
Fixes: 425d244c86 ("drm/i915: ignore LVDS on intel graphics systems...")
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Duncan Laurie <dlaurie@chromium.org>
Cc: Jarod Wilson <jarod@redhat.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>	# Can modpost be fixed?
Cc: stable@vger.kernel.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-08-28 09:54:27 +03:00
Thierry Reding
1f58d9465c dma-buf/fence: Fix one more kerneldoc warning
The seqno_fence_init() function's cond argument isn't described in the
kerneldoc comment. Fix that to silence a warning when building DocBook
documentation.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
2014-08-28 11:59:38 +05:30
Thierry Reding
e9f3b79648 dma-buf/fence: Fix a kerneldoc warning
kerneldoc doesn't know how to parse variables, so don't let it try.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
2014-08-28 11:59:09 +05:30
Gioh Kim
a07b3b4508 Documentation/dma-buf-sharing.txt: update API descriptions
Update some descriptions for API arguments and descriptions.

Signed-off-by: Gioh Kim <gioh.kim@lge.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
2014-08-28 11:57:24 +05:30
Y.C. Chen
b8d758d29f drm/ast: Add missing entry to dclk_table[]
This avoid reading past the end of the list for certain modes

Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com>
Reviewed-by: Egbert Eich <eich@freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-08-28 12:26:42 +10:00
Dave Airlie
36d07e3ac7 Merge branch 'drm-3.17-rc2-sti-fixes' of git://git.linaro.org/people/benjamin.gaignard/kernel into drm-fixes
I have tested the 6 patches send on mailing list since you merge the sti driver.
I haven't seen issue with those patches except for the missing
dependency on Kconfig
where I have change "depends on" to "select".

* 'drm-3.17-rc2-sti-fixes' of git://git.linaro.org/people/benjamin.gaignard/kernel:
  drm: sti: Add missing dependency on RESET_CONTROLLER
  drm: sti: Make of_device_id array const
  drm: sti: Fix return value check in sti_drm_platform_probe()
  drm: sti: hda: fix return value check in sti_hda_probe()
  drm: sti: hdmi: fix return value check in sti_hdmi_probe()
  drm: sti: tvout: fix return value check in sti_tvout_probe()
2014-08-28 11:48:58 +10:00
Dave Airlie
5fa9be63a4 Merge branch 'msm-fixes-3.17' of git://people.freedesktop.org/~robclark/linux into drm-fixes
misc msm fixes from Rob.

* 'msm-fixes-3.17' of git://people.freedesktop.org/~robclark/linux:
  drm/msm: Fix missing unlock on error in msm_fbdev_create()
  drm/msm: fix compile error for non-dt builds
  drm/msm/mdp4: request vblank during modeset
  drm/msm: avoid flood of kernel logs on faults
2014-08-28 11:48:05 +10:00
Rajendra Nayak
f7f7a29bf0 ARM: DRA7: hwmod: Add dra74x and dra72x specific ocp interface lists
To deal with IPs which are specific to dra74x and dra72x, maintain seperate
ocp interface lists, while keeping the common list for all common IPs.

Move USB OTG SS4 to dra74x only list since its unavailable in
dra72x and is giving an abort during boot. The dra72x only list
is empty for now and a placeholder for future hwmod additions which
are specific to dra72x.

Fixes: d904b38df0 ("ARM: DRA7: hwmod: Add SYSCONFIG for usb_otg_ss")
Reported-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
[paul@pwsan.com: fixed comment style to conform with CodingStyle]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-08-27 19:38:23 -06:00
Rajendra Nayak
af438fec6c ARM: DRA7: Add support for soc_is_dra74x() and soc_is_dra72x() variants
Use the corresponding compatibles to identify the devices.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-08-27 19:38:22 -06:00
David Herrmann
00e7208997 drm: fix division-by-zero on dumb_create()
Kinda unexpected, but DIV_ROUND_UP() can overflow if passed an argument
bigger than UINT_MAX - DIVISOR. Fix this by testing for "!cpp" before
using it in the following division.

Note that DIV_ROUND_UP() is defined as:
        #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))

..this will obviously overflow if (n + d - 1) is bigger than UINT_MAX.

Reported-by: Tommi Rantala <tt.rantala@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-08-28 11:38:04 +10:00
Rob Clark
4d6923733f ww-mutex: clarify help text for DEBUG_WW_MUTEX_SLOWPATH
We really don't want distro's enabling this in their kernels.  Try and
make that more clear.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Acked-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-08-28 11:34:43 +10:00
Dave Airlie
a80612273c Merge branch 'drm-fixes-3.17' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Just a few more radeon fixes for 3.17.

* 'drm-fixes-3.17' of git://people.freedesktop.org/~agd5f/linux:
  radeon: Test for PCI root bus before assuming bus->self
  drm/radeon: handle broken disabled rb mask gracefully (6xx/7xx) (v2)
  drm/radeon: save/restore the PD addr on suspend/resume
2014-08-28 11:32:20 +10:00
Linus Torvalds
f1bd473f95 Merge branch 'sec-v3.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/sergeh/linux-security
Pull tomoyo fix from Serge Hallyn.

* 'sec-v3.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/sergeh/linux-security:
  tomoyo: Fix pathname calculation breakage.
2014-08-27 17:32:37 -07:00
Greg Kroah-Hartman
a9ef803d74 USB: fix build error with CONFIG_PM_RUNTIME disabled
commit bdd405d2a5 ("usb: hub: Prevent hub autosuspend if
usbcore.autosuspend is -1") causes a build error if CONFIG_PM_RUNTIME is
disabled.  Fix that by doing a simple #ifdef guard around it.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Roger Quadros <rogerq@ti.com>
Cc: Michael Welling <mwelling@emacinc.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-08-27 16:55:29 -07:00
Rafael J. Wysocki
0b4f58b7ce Merge branch 'pm-cpufreq'
* pm-cpufreq:
  cpufreq: s5pv210: Remove spurious __init annotation
  cpufreq: intel_pstate: Add CPU ID for Braswell processor
  intel_pstate: Turn per cpu printk into pr_debug
2014-08-28 01:31:17 +02:00
Mark Brown
dc26874239 cpufreq: s5pv210: Remove spurious __init annotation
Since this is a platform driver and can be probed at any time we can't
annotate funtions in the probe path as __init, the code can't safely be
discarded at the end of kernel init.

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-08-28 01:30:55 +02:00
Rafael J. Wysocki
772c7137bc Merge branches 'acpi-scan', 'acpi-ec' and 'acpi-lpss'
* acpi-scan:
  ACPI: Run fixed event device notifications in process context
  ACPI / scan: Allow ACPI drivers to bind to PNP device objects

* acpi-ec:
  ACPI / EC: Add support to disallow QR_EC to be issued before completing previous QR_EC
  ACPI / EC: Add support to disallow QR_EC to be issued when SCI_EVT isn't set

* acpi-lpss:
  ACPI / LPSS: Add ACPI IDs for Intel Braswell
2014-08-28 01:27:08 +02:00
Mika Westerberg
16405f98bc cpufreq: intel_pstate: Add CPU ID for Braswell processor
This is pretty much the same as Intel Baytrail, only the CPU ID is
different. Add the new ID to the supported CPU list.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-08-28 01:26:21 +02:00
Andi Kleen
ce717613f3 intel_pstate: Turn per cpu printk into pr_debug
On larger systems intel_pstate currently spams the boot up
log with its "Intel pstate controlling ..." message for each CPU.
It's the only subsystem that prints a message for each
CPU.

Turn the message into a pr_debug.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-08-28 01:23:08 +02:00
Dmitry Monakhov
c174e6d697 ext4: fix transaction issues for ext4_fallocate and ext_zero_range
After commit f282ac19d8 we use different transactions for
preallocation and i_disksize update which result in complain from fsck
after power-failure.  spotted by generic/019. IMHO this is regression
because fs becomes inconsistent, even more 'e2fsck -p' will no longer
works (which drives admins go crazy) Same transaction requirement
applies ctime,mtime updates

testcase: xfstest generic/019

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
2014-08-27 18:40:00 -04:00
Dmitry Monakhov
69dc953640 ext4: fix incorect journal credits reservation in ext4_zero_range
Currently we reserve only 4 blocks but in worst case scenario
ext4_zero_partial_blocks() may want to zeroout and convert two
non adjacent blocks.

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
2014-08-27 18:33:49 -04:00
Greg Kroah-Hartman
7c38405ca7 Revert "usb: ehci/ohci-exynos: Fix PHY getting sequence"
This reverts commit 039368901a.

Vivek writes:
	We not longer need this patch, since we have planned to remove
	the usb-phy drivers for samsung [1], we have completely deleted
	the support for the the same from ohci-exynos and ehci-exynos
	drivers too [2].  Sorry for the confusion, but this patch can be
	dropped and instead we can pick the patches in [2].

	[1] http://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg35774.html
	[2] https://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg35695.html
	    https://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg35696.html

Cc: Sachin Kamat <sachin.kamat@samsung.com>
Cc: Vivek Gautam <gautam.vivek@samsung.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Sachin Kamat <sachin.kamat@samsung.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-08-27 15:23:53 -07:00
Olof Johansson
0dc0d9e18e Renesas ARM Based SoC Clock Fixes For v3.17
* ARM: shmobile: r8a7791: add missing 0x0100 for SDCKCR
 
   This resolves a problem introduced by 4bfb358b1d
   ("ARM: shmobile: Add r8a7791 legacy SDHI clocks")
   which was included in v3.15.
 
   This fix does not have any run-time affect at this time.
 
 * ARM: shmobile: r8a7790: add missing 0x0100 for SDCKCR
 
   This resolves a problem introduced by 9f13ee6f83
   ("ARM: shmobile: r8a7790: add div4 clocks")
   which was included in v3.11.
 
   This fix does not have any run-time affect at this time.
 
 * ARM: shmobile: sh73a0: Remove spurious 0x from SCIFB clock name
 
   This resolves a problem introduced by a0f7e7496d
   ("ARM: shmobile: sh73a0: add CMT1 clock support for DT")
   which was included in v3.17-rc1.
 
   This fix does not have any run-time affect at this time as the clock in
   question is used by a SCIF device that is not enabled by default.
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Merge tag 'renesas-clock-fixes-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes

Merge "Renesas ARM Based SoC Clock Fixes For v3.17" from Simon Horman:

* ARM: shmobile: r8a7791: add missing 0x0100 for SDCKCR

  This resolves a problem introduced by 4bfb358b1d
  ("ARM: shmobile: Add r8a7791 legacy SDHI clocks")
  which was included in v3.15.

  This fix does not have any run-time affect at this time.

* ARM: shmobile: r8a7790: add missing 0x0100 for SDCKCR

  This resolves a problem introduced by 9f13ee6f83
  ("ARM: shmobile: r8a7790: add div4 clocks")
  which was included in v3.11.

  This fix does not have any run-time affect at this time.

* ARM: shmobile: sh73a0: Remove spurious 0x from SCIFB clock name

  This resolves a problem introduced by a0f7e7496d
  ("ARM: shmobile: sh73a0: add CMT1 clock support for DT")
  which was included in v3.17-rc1.

  This fix does not have any run-time affect at this time as the clock in
  question is used by a SCIF device that is not enabled by default.

* tag 'renesas-clock-fixes-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: r8a7791: add missing 0x0100 for SDCKCR
  ARM: shmobile: r8a7790: add missing 0x0100 for SDCKCR
  ARM: shmobile: sh73a0: Remove spurious 0x from SCIFB clock name

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-08-27 15:14:05 -07:00
Olof Johansson
e1e5b71843 i.MX fixes for 3.17, 2nd take:
- Fixes suspend/resume issue on imx53-qsrb due to PMIC IRQ pin
    configuration missing
  - A couple small SolidRun board fixes/correction from Rabeeh
    and Russell
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Merge tag 'imx-fixes-3.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

Merge "ARM: imx: fixes for 3.17, 2nd take" from Shawn Guo:

i.MX fixes for 3.17, 2nd take:
 - Fixes suspend/resume issue on imx53-qsrb due to PMIC IRQ pin
   configuration missing
 - A couple small SolidRun board fixes/correction from Rabeeh
   and Russell

* tag 'imx-fixes-3.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: dts: microsom-ar8035: MDIO pad must be set open drain
  ARM: dts: hummingboard/cubox-i: change SPDIF output to be more descriptive
  ARM: dts: hummingboard/cubox-i: add USB OC pinctrl configuration
  ARM: dts: imx53-qsrb: Fix suspend/resume

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-08-27 15:12:22 -07:00
Olof Johansson
c2e1da63e6 Fixes for omaps, mostly to revert NAND back to using software ECC
by default as that's what many boards expect. Also fixes for omap5
 clocks, PM wake-up events, GPIO interrupt cells for dra7, and few
 other minor fixes.
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Merge tag 'omap-for-v3.17/fixes-against-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Merge "omap fixes against v3.17-rc2" from Tony Lindgren:

Fixes for omaps, mostly to revert NAND back to using software ECC
by default as that's what many boards expect. Also fixes for omap5
clocks, PM wake-up events, GPIO interrupt cells for dra7, and few
other minor fixes.

* tag 'omap-for-v3.17/fixes-against-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: omap54xx-clocks: Fix the l3 and l4 clock rates
  ARM: OMAP2+: hwmod: Rearm wake-up interrupts for DT when MUSB is idled
  ARM: dts: Enable UART wake-up events for beagleboard
  ARM: dts: Remove twl6030 clk32g "regulator"
  ARM: OMAP2+: omap_device: remove warning that clk alias already exists
  ARM: OMAP: fix %d confusingly prefixed with 0x in format string
  ARM: dts: DRA7: fix interrupt-cells for GPIO
  mtd: nand: omap: Fix 1-bit Hamming code scheme, omap_calculate_ecc()
  ARM: dts: omap3430-sdp: Revert to using software ECC for NAND
  ARM: OMAP2+: GPMC: Support Software ECC scheme via DT
  mtd: nand: omap: Revert to using software ECC by default
2014-08-27 15:08:28 -07:00
Heiko Stübner
541555e95c MAINTAINERS: catch special Rockchip code locations
Add some more locations that aren't catched by the general wildcard.
This includes the devicetree files, clock directory, rk3x i2c driver,
everything in a third layer under drivers like iio/adc/rockchip_saradc.c
and the i2s driver.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-08-27 15:03:20 -07:00
Alex Williamson
0bd252de78 radeon: Test for PCI root bus before assuming bus->self
If we assign a Radeon device to a virtual machine, we can no longer
assume a fixed hardware topology, like the GPU having a parent device.
This patch simply adds a few pci_is_root_bus() tests to avoid passing
a NULL pointer to PCI access functions, allowing the radeon driver to
work in a QEMU 440FX machine with an assigned HD8570 on the emulated
PCI root bus.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-08-27 17:54:50 -04:00
Geert Uytterhoeven
3a4c695965 regulator: Proofread documentation
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-27 22:04:36 +01:00