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Andreas Pape 93c8628183 ALSA: dmaengine: increment buffer pointer atomically 
[ Upstream commit d1c442019594692c64a70a86ad88eb5b6db92216 ]

Setting pointer and afterwards checking for wraparound leads
to the possibility of returning the inconsistent pointer position.

This patch increments buffer pointer atomically to avoid this issue.

Fixes: e7f73a1613567a ("ASoC: Add dmaengine PCM helper functions")
Signed-off-by: Andreas Pape <apape@de.adit-jv.com>
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Link: https://lore.kernel.org/r/1664211493-11789-1-git-send-email-erosca@de.adit-jv.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-26 13:22:30 +02:00
..
oss
ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC
2022-09-28 11:03:57 +02:00
seq
ALSA: seq: Fix data-race at module auto-loading
2022-09-15 12:04:53 +02:00
compress_offload.c
ALSA: compress: fix partial_drain completion state
2020-07-16 08:16:39 +02:00
control_compat.c
ALSA: ctl: Fix copy of updated id with element read/write
2021-12-14 14:49:00 +01:00
control.c
ALSA: ctl: fix error path at adding user-defined element set
2020-11-24 13:29:20 +01:00
ctljack.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
device.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
hrtimer.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
hwdep_compat.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
hwdep.c
ALSA: hwdep: fix a left shifting 1 by 31 UB bug
2020-06-03 08:21:22 +02:00
info_oss.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
info.c
ALSA: info: Fix llseek return value when using callback
2022-08-25 11:18:18 +02:00
init.c
ALSA: core: remove redundant spin_lock pair in snd_card_disconnect
2021-05-14 09:44:26 +02:00
isadma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
jack.c
ALSA: jack: Access input_dev under mutex
2022-06-14 18:11:25 +02:00
Kconfig
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
Makefile
ALSA: ISA: not for M68K
2021-11-26 10:47:16 +01:00
memalloc.c
ALSA: memalloc: Align buffer allocations in page size
2022-07-29 17:14:18 +02:00
memory.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
misc.c
ALSA: core: Add async signal helpers
2022-08-25 11:18:37 +02:00
pcm_compat.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
pcm_dmaengine.c
ALSA: dmaengine: increment buffer pointer atomically
2022-10-26 13:22:30 +02:00
pcm_drm_eld.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pcm_iec958.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pcm_lib.c
ALSA: pcm: Fix potential AB/BA lock with buffer_mutex and mmap_lock
2022-05-12 12:23:49 +02:00
pcm_local.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 345
2019-06-05 17:37:08 +02:00
pcm_memory.c
ALSA: pcm: Fix races among concurrent prealloc proc writes
2022-05-12 12:23:49 +02:00
pcm_misc.c
ALSA: pcm: Test for "silence" field in struct "pcm_format_data"
2022-04-20 09:19:38 +02:00
pcm_native.c
ALSA: pcm: Fix potential AB/BA lock with buffer_mutex and mmap_lock
2022-05-12 12:23:49 +02:00
pcm_param_trace.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pcm_timer.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
pcm_trace.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pcm.c
ALSA: pcm: Fix potential AB/BA lock with buffer_mutex and mmap_lock
2022-05-12 12:23:49 +02:00
rawmidi_compat.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
rawmidi.c
ALSA: rawmidi: Drop register_mutex in snd_rawmidi_free()
2022-10-26 13:22:10 +02:00
seq_device.c
ALSA: seq: Fix a potential UAF by wrong private_free call order
2021-10-20 11:40:12 +02:00
sgbuf.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
sound_oss.c
ALSA: oss: Fix potential deadlock at unregistration
2022-10-26 13:22:10 +02:00
sound.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
timer_compat.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
timer.c
ALSA: timer: Use deferred fasync helper
2022-08-25 11:18:38 +02:00
vmaster.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372
2019-06-05 17:37:10 +02:00