Jia-Ju Bai df8ab4c601 media: bdisp: Fix a possible sleep-in-atomic bug in bdisp_hw_save_request ...

The driver may sleep under a spinlock.
The function call path is:
bdisp_device_run (acquire the spinlock)
  bdisp_hw_update
    bdisp_hw_save_request
      devm_kzalloc(GFP_KERNEL) --> may sleep

To fix it, GFP_KERNEL is replaced with GFP_ATOMIC.

This bug is found by my static analysis tool(DSAC) and checked by my code review.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Reviewed-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

2017-12-18 15:02:48 -05:00

..

accessibility

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acpi

ACPI fix for v4.15-rc1

2017-11-17 14:51:24 -08:00

amba

A couple of dma-mapping updates:

2017-11-14 16:54:12 -08:00

android

Char/Misc patches for 4.15-rc1

2017-11-16 09:10:59 -08:00

ata

Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata

2017-11-15 14:11:41 -08:00

atm

treewide: setup_timer() -> timer_setup()

2017-11-21 15:57:07 -08:00

auxdisplay

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-13 17:56:58 -08:00

base

treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts

2017-11-21 16:35:54 -08:00

bcma

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2017-11-15 11:56:19 -08:00

block

treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts

2017-11-21 16:35:54 -08:00

bluetooth

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bus

ARM: SoC driver updates for v4.15

2017-11-16 16:05:01 -08:00

cdrom

Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block

2017-11-14 15:32:19 -08:00

char

Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-26 14:11:54 -08:00

clk

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

clocksource

- final batch of "non trivial" timer conversions (multi-tree dependencies,

2017-11-23 16:29:05 +01:00

connector

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cpufreq

Power management updates for v4.15-rc1

2017-11-13 19:43:50 -08:00

cpuidle

powerpc updates for 4.15

2017-11-16 12:47:46 -08:00

crypto

powerpc updates for 4.15

2017-11-16 12:47:46 -08:00

dax

libnvdimm for 4.15

2017-11-17 09:51:57 -08:00

dca

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devfreq

Merge branches 'pm-devfreq' and 'pm-tools'

2017-11-13 01:41:39 +01:00

dio

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dma

dmaengine updates for 4.15-rc1

2017-11-14 16:49:31 -08:00

dma-buf

Tracing updates for 4.15:

2017-11-17 14:58:01 -08:00

edac

Modules updates for v4.15

2017-11-15 13:46:33 -08:00

eisa

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extcon

USB/PHY patches for 4.15-rc1

2017-11-13 21:14:07 -08:00

firewire

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-13 17:56:58 -08:00

firmware

drivers/firmware: psci: Convert timers to use timer_setup()

2017-11-21 15:46:44 -08:00

fmc

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fpga

Char/Misc patches for 4.15-rc1

2017-11-16 09:10:59 -08:00

fsi

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gpio

This is the bulk of pin control changes for the v4.15

2017-11-16 10:57:11 -08:00

gpu

Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-25 08:37:16 -10:00

hid

treewide: setup_timer() -> timer_setup()

2017-11-21 15:57:07 -08:00

hsi

HSI changes for the v4.15 series

2017-11-15 13:35:43 -08:00

hv

Char/Misc patches for 4.15-rc1

2017-11-16 09:10:59 -08:00

hwmon

hwmon: (w83793) Remove duplicate NULL check

2017-11-16 01:03:19 -08:00

hwspinlock

hwspinlock update for v4.15

2017-11-17 20:16:20 -08:00

hwtracing

Char/Misc patches for 4.15-rc1

2017-11-16 09:10:59 -08:00

i2c

Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2017-11-17 11:54:55 -08:00

ide

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide

2017-11-19 08:04:41 -10:00

idle

Merge branch 'pm-cpuidle'

2017-11-13 01:34:14 +01:00

iio

treewide: setup_timer() -> timer_setup()

2017-11-21 15:57:07 -08:00

infiniband

treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts

2017-11-21 16:35:54 -08:00

input

treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts

2017-11-21 16:35:54 -08:00

iommu

treewide: setup_timer() -> timer_setup()

2017-11-21 15:57:07 -08:00

ipack

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irqchip

Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-26 14:39:20 -08:00

isdn

treewide: setup_timer() -> timer_setup() (2 field)

2017-11-21 15:57:09 -08:00

leds

LED updates for 4.15rc1

2017-11-14 18:09:31 -08:00

lightnvm

lightnvm: Convert timers to use timer_setup()

2017-11-21 15:46:44 -08:00

macintosh

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-13 17:56:58 -08:00

mailbox

Change to POLL api and fixes for FlexRM and OMAP driver

2017-11-15 13:39:18 -08:00

mcb

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md

Merge branch 'for-linus' of git://git.kernel.dk/linux-block

2017-11-17 10:56:56 -08:00

media

media: bdisp: Fix a possible sleep-in-atomic bug in bdisp_hw_save_request

2017-12-18 15:02:48 -05:00

memory

ARM: SoC driver updates for v4.15

2017-11-16 16:05:01 -08:00

memstick

treewide: setup_timer() -> timer_setup()

2017-11-21 15:57:07 -08:00

message

Modules updates for v4.15

2017-11-15 13:46:33 -08:00

mfd

treewide: setup_timer() -> timer_setup()

2017-11-21 15:57:07 -08:00

misc

lkdtm: include WARN format string

2017-11-17 16:10:01 -08:00

mmc

treewide: setup_timer() -> timer_setup()

2017-11-21 15:57:07 -08:00

mtd

Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-25 08:37:16 -10:00

mux

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net

Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-25 08:37:16 -10:00

nfc

treewide: setup_timer() -> timer_setup() (2 field)

2017-11-21 15:57:09 -08:00

ntb

treewide: setup_timer() -> timer_setup()

2017-11-21 15:57:07 -08:00

nubus

m68k updates for 4.15

2017-11-13 12:10:24 -08:00

nvdimm

libnvdimm for 4.15

2017-11-17 09:51:57 -08:00

nvme

nvmet_fc: fix better length checking

2017-11-16 11:27:04 -07:00

nvmem

Char/Misc patches for 4.15-rc1

2017-11-16 09:10:59 -08:00

of

DeviceTree fixes for 4.15:

2017-11-20 21:38:41 -10:00

opp

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oprofile

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parisc

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parport

Char/Misc patches for 4.15-rc1

2017-11-16 09:10:59 -08:00

pci

Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-26 14:11:54 -08:00

pcmcia

drivers/pcmcia/sa1111_badge4.c: avoid unused function warning

2017-11-17 16:10:04 -08:00

perf

arm64 updates for 4.15

2017-11-15 10:56:56 -08:00

phy

USB/PHY patches for 4.15-rc1

2017-11-13 21:14:07 -08:00

pinctrl

This is the bulk of pin control changes for the v4.15

2017-11-16 10:57:11 -08:00

platform

Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-25 08:37:16 -10:00

pnp

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power

power supply and reset changes for the v4.15 series

2017-11-15 13:37:15 -08:00

powercap

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pps

treewide: setup_timer() -> timer_setup()

2017-11-21 15:57:07 -08:00

ps3

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ptp

xen: features and fixes for v4.15-rc1

2017-11-16 13:06:27 -08:00

pwm

pwm: Changes for v4.15-rc1

2017-11-22 21:09:18 -10:00

rapidio

Merge branch 'akpm' (patches from Andrew)

2017-11-17 16:56:17 -08:00

ras

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-13 17:56:58 -08:00

regulator

- New Drivers

2017-11-16 09:15:57 -08:00

remoteproc

remoteproc updates for v4.15

2017-11-17 20:14:10 -08:00

reset

ARM: SoC driver updates for v4.15

2017-11-16 16:05:01 -08:00

rpmsg

rpmsg updates for v4.15

2017-11-17 20:12:08 -08:00

rtc

Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-25 08:37:16 -10:00

s390

treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts

2017-11-21 16:35:54 -08:00

sbus

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc

2017-11-17 20:21:44 -08:00

scsi

Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-25 08:37:16 -10:00

sfi

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sh

A couple of dma-mapping updates:

2017-11-14 16:54:12 -08:00

sn

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soc

ARM: SoC driver updates for v4.15

2017-11-16 16:05:01 -08:00

spi

Merge remote-tracking branches 'spi/topic/sh-msiof', 'spi/topic/slave', 'spi/topic/spreadtrum' and 'spi/topic/tegra114' into spi-next

2017-11-10 21:33:51 +00:00

spmi

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ssb

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staging

media: staging/imx: update TODO

2017-12-15 14:10:26 -05:00

target

Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-25 08:37:16 -10:00

tc

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tee

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thermal

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux

2017-11-17 14:31:27 -08:00

thunderbolt

Char/Misc patches for 4.15-rc1

2017-11-16 09:10:59 -08:00

tty

treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts

2017-11-21 16:35:54 -08:00

uio

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usb

treewide: setup_timer() -> timer_setup()

2017-11-21 15:57:07 -08:00

uwb

treewide: setup_timer() -> timer_setup()

2017-11-21 15:57:07 -08:00

vfio

VFIO Updates for Linux v4.15

2017-11-14 16:47:47 -08:00

vhost

Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2017-11-17 12:08:18 -08:00

video

fbdev changes for v4.15:

2017-11-20 21:50:24 -10:00

virt

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virtio

virtio_balloon: fix deadlock on OOM

2017-11-14 23:57:38 +02:00

vlynq

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vme

Char/Misc patches for 4.15-rc1

2017-11-16 09:10:59 -08:00

w1

Char/Misc patches for 4.15-rc1

2017-11-16 09:10:59 -08:00

watchdog

treewide: setup_timer() -> timer_setup()

2017-11-21 15:57:07 -08:00

xen

treewide: Switch DEFINE_TIMER callbacks to struct timer_list *

2017-11-21 15:57:05 -08:00

zorro

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Kconfig

Merge branches 'pm-cpufreq-sched' and 'pm-opp'

2017-11-13 01:40:52 +01:00

Makefile

Merge branches 'pm-cpufreq-sched' and 'pm-opp'

2017-11-13 01:40:52 +01:00