ping: prevent NULL pointer dereference on write to msg_name

A plain read() on a socket does set msg->msg_name to NULL. So check for
NULL pointer first.

Change-Id: I3773934fb633157ce5011d2f10900b7caef73733
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Git-commit: cf970c002d270c36202bd5b9c2804d3097a52da0
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Avijit Kanti Das <avijitnsec@codeaurora.org>
ASoC: msm: qdsp6v2: adding volume per dev-id.

Add volume mixer control per device id for pcm use case.

Change-Id: Ieab721541a5cdf494b7fad78abc06d4f667b4baf
Signed-off-by: Anish Kumar <kanish@codeaurora.org>
qseecom: change return value to 0 if app id exists when loading app

Currently qseecom will return the app_id (>0) instead of 0 if the
app id already exists when loading app. Then the userspace client
will release qseecom handle if an non-zero return value is obtained.
Make a change to let qseecom return 0 when app id exist so as to
avoid the incorrect qseecom release.

Change-Id: I03b0b0ae95b2e043fda972aa3b613e7df585154a
Signed-off-by: Zhen Kong <zkong@codeaurora.org>
Signed-off-by: William Clark <wclark@codeaurora.org>
leds: leds-qpnp: provide pwm period when leds are set to LPG mode in DT

In the current design, if MPP-controlled leds or RGB leds are configured
to LPG mode in the device tree, the PWM period value is not provided.
This will result in "pwm_cfg->pwm_period_us" being assigned to zero
since no PWM period value will be read from device tree. As a result,
qpnp_pwm_init() returns error, which in turn results in failure of
qpnp_mpp_init() or qpnp_rgb_init() and finally resulting in failure of
qpnp_leds_probe().

So "qcom,pwm-us" property should be provided in DT for the above case and
the property parsing needs to be implemented in the leds-qpnp driver.

Change-Id: Ic32833ea4e685939148e38cdba078391936f8efb
CRs-Fixed: 667825
Signed-off-by: Abinaya P <abinayap@codeaurora.org>
msm: mdss: Check null-pointer dereferencing and buffer overflows

Add checks before possible null-pointer dereferencing. Add checks to
prevent buffer out-of-bounds access.

Change-Id: I17419c82654c4ad2d18c7f88e34447cf333450bb
Signed-off-by: Mathew Karimpanal <kjmathew@codeaurora.org>
Signed-off-by: Beeresh Gopal <gbeeresh@codeaurora.org>
msm: thermal: Add support for cpu temp limit recommendation for SoC

Add support in KTM to get SoC parts info by reading appropriate
efuse bits and recommend default cpu temperature limit based on
efuse value temperature map to userspace through sysfs interface
'/sys/module/msm_thermal/default_cpu_temp_limit'. Efuse data
to be read such as address, row number, starting bit number
of the row, number of bits for identifying parts etc, default core
temperature and efuse temperature value map are read from dt.
The default cpu temperature information is exported in the format
<temperature in degree celsius>.

Conflicts:
        drivers/thermal/msm_thermal.c

Change-Id: Icbf43c3fd56e95d49a886d309e613d2fe146a506
Signed-off-by: Manaf Meethalavalappu Pallikunhi <manafm@codeaurora.org>
Signed-off-by: Akhila Musunuri <makhila@codeaurora.org>
spi_qsd: Initialize wait queue

Due to missing initialization of wait queue
issues reported on customer builds. This patch
adds the missing wait queue initialization code.

Change-Id: I2150d94bfec74b26842aac4fbd0e2e44af3b9943
Signed-off-by: Sana Venkat Raju <c_vsana@codeaurora.org>
ARM: dts: msm: Add CX regulator Phandle to MDP node

The Phandle might change for different versions of
the msm8974 chip. Add the proper Phandle of CX regulator
to 8974pro version.

Change-Id: I6e8ab19c9765ff225a54a621cd001e8af1c7391d
Signed-off-by: Xiaoming Zhou <zhoux@codeaurora.org>
ASoC: wcd9xxx: Don't enable micbias if headset is removed

If special headset is removed, the callback to
disable micbias will be called, as micbias is
always on with special headset. Mbhc driver
checks a flag, used to disable/enable micbias
for special headset, to make sure micbias is
not disabled by recording. If this flag is not
updated properly before the callback is called
while the headset is removed, it can cause that
micbias is left enabled.

CRs-Fixed: 687630
Change-Id: Id49a2a0ba43821deef8fc5b6fb904239b2273f69
Signed-off-by: Simmi Pateriya <simmip@codeaurora.org>
cpaccess: remove use of set_get_l2_indirect_reg()

cpaccess is the only client of set_get_l2_indirect_reg(), a special-
purpose API for writing an indirect Krait CP15 register and reading
back the new value. For simplicity, this API is being removed and
replaced with bacl-to-back calls to set_l2_indirect_reg() and
get_l2_indirect_reg(), which should perform comparably.

Change-Id: I868ae115265c59e58ffd37dc405a91c6962e0c3d
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
msm: krait-l2-accessors: Remove set_get_l2_indirect_reg() API

There are no remaining users of this API, which writes to an indirect
register and reads back the new value. To simplify the future addition
of RTB logging for L2 indirect CP15 accesses, remove the unused API.

set_l2_indirect_reg() and get_l2_indirect_reg() can be individually
called to accomplish the same purpose that set_get_l2_indirect_reg()
served, with a negligible performance difference for common usecases.

Change-Id: If372370eabda7cf5d9eee488222a17e139609a36
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
msm: msm-krait-l2-accessors: Add RTB logging

Accesses to indirect CP15 registers are important system events that
are worth recording in the RTB logs. The logs may aid in debugging
issues seen following operations that use these APIs, like CPU clock
source selection changes.

Change-Id: Ibc98ba2d58ab809a9e22bab4b6fcadd1e00e5f70
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
mmc: block: Fix an invalid use of req->cmd_flag in DISCARD operation

When handling a DISCARD operation, the MMC request data structure may be
freed in memory. Therefore, it can't be used to retrieve the cmd_flags
for checking if MMC_REQ_NOREINSERT_MASK is set:
(!(mq->mqrq_cur->req->cmd_flags & MMC_REQ_NOREINSERT_MASK)))).

To prevent the issue we should use the local variable of cmd_flags.

Change-Id: I3b25a0e734325355c50d4d5f5b38e9631ae41dd9
CRs-Fixed: 683957
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Konstantin Dorfman <kdorfman@codeaurora.org>
power: qpnp-charger: enable vtrkl comparator and disable trickle clamp

An issue with digital logic can cause the charger to get stuck
in trickle charging. In order to avoid this the bootloader
overrides the trickle charge comparator when VBAT > 3.7 V.

Once kernel is initialized, these comparators need to be
re-enabled and the trickle clamp to be disabled.

Change-Id: Ida3f18519137e3a7ccfe483cc3168e92d484b429
CRs-Fixed: 646222
Signed-off-by: David Keitel <dkeitel@codeaurora.org>
(cherry picked from commit 79e08321531503297bca589e05a5c8634422b926)
Merge "power: qpnp-charger: enable vtrkl comparator and disable trickle clamp"
Merge "Merge "power: qpnp-charger: enable vtrkl comparator and disable trickle clamp""
Merge "mmc: block: Fix an invalid use of req->cmd_flag in DISCARD operation"
Merge "Merge "mmc: block: Fix an invalid use of req->cmd_flag in DISCARD operation""
sched: Remove redundant update_runtime notifier

migration_call() will do all the things that update_runtime() does.
So let's remove it.

Furthermore, there is potential risk that the current code will catch
BUG_ON at line 689 of rt.c when do cpu hotplug while there are realtime
threads running because of enabling runtime twice while the rt_runtime
may already changed.

Change-Id: If2d953316d93c6b7e32f94bd49f2c10e64de6ed8
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1365685499-26515-1-git-send-email-zhangwm@marvell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Git-commit: c5405a495e88d93cf9b4f4cc91507c7f4afcb901
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
[mattw@codeaurora.org: resolved trivial header file context conflict]
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
Merge "sched: Remove redundant update_runtime notifier"