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3809db6430
linux/sound/core
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Takashi Iwai 3809db6430 ALSA: rawmidi: Take buffer refcount while draining output 
Although snd_rawmidi_drain_output() may take some long time, it has no
protection and intrusive operations like the buffer resize may happen
meanwhile.  For making the operation a bit more robust, this patch
takes the buffer refcount for blocking the buffer resize.

Also, as this function is exported, in theory, it might be called
asynchronously from the stream open/close state.  For avoiding the
missing refcount, now the close call checks the buffer refcount, too.

Link: https://lore.kernel.org/r/20220617144051.18985-6-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-06-20 09:36:04 +02:00
..
oss Merge branch 'for-next' into for-linus 2022-03-21 16:18:34 +01:00
seq ALSA: seq: replace ternary operator with max() 2022-05-17 08:49:42 +02:00
compress_offload.c ALSA: compress: Initialize mutex in snd_compress_new() 2021-07-15 10:22:38 +02:00
control_compat.c x86: Remove toolchain check for X32 ABI capability 2022-03-15 10:32:48 +01:00
control_led.c ALSA: led: Use restricted type for iface assignment 2021-11-23 18:12:05 +01:00
control.c ALSA: control: Add input validation 2022-06-15 07:45:28 +02:00
ctljack.c ALSA: Convert strlcpy to strscpy when return value is unused 2021-01-08 09:30:05 +01:00
device.c ALSA: core: Add snd_device_get_state() helper 2020-03-23 18:09:19 +01:00
hrtimer.c ALSA: timer: Replace tasklet with work 2020-09-09 18:32:52 +02:00
hwdep_compat.c ALSA: compat_ioctl: avoid compat_alloc_user_space 2020-09-21 10:37:07 +02:00
hwdep.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
info_oss.c ALSA: oss: remove useless NULL check before kfree 2021-12-06 10:08:13 +01:00
info.c proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
init.c ALSA: control: Use xarray for faster lookups 2022-06-15 07:44:55 +02:00
isadma.c ALSA: core: Add device-managed request_dma() 2021-07-19 16:16:34 +02:00
jack.c ALSA: jack: Access input_dev under mutex 2022-04-12 12:19:05 +02:00
Kconfig ALSA: control: Add input validation 2022-06-15 07:45:28 +02:00
Makefile m68k: coldfire: drop ISA_DMA_API support 2022-05-16 13:18:30 +10:00
memalloc_local.h ALSA: memalloc: Support for non-contiguous page allocation 2021-10-18 13:32:10 +02:00
memalloc.c ALSA: memalloc: Add fallback SG-buffer allocations for x86 2022-04-13 07:48:53 +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: Fix SSID quirk lookup for subvendor=0 2022-01-17 09:59:32 +01:00
pcm_compat.c x86: Remove toolchain check for X32 ABI capability 2022-03-15 10:32:48 +01:00
pcm_dmaengine.c ASoC: dai_dma: remove slave_id field 2021-12-17 11:23:56 +05:30
pcm_drm_eld.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
pcm_iec958.c ALSA: iec958: Split status creation and fill 2021-06-08 17:05:41 +02:00
pcm_lib.c ALSA: pcm: Fix potential AB/BA lock with buffer_mutex and mmap_lock 2022-03-30 14:29:49 +02:00
pcm_local.h ALSA: memalloc: Support for non-contiguous page allocation 2021-10-18 13:32:10 +02:00
pcm_memory.c ALSA: pcm: Check for null pointer of pointer substream before dereferencing it 2022-04-25 07:52:50 +02:00
pcm_misc.c ALSA: pcm: Test for "silence" field in struct "pcm_format_data" 2022-04-11 09:27:56 +02:00
pcm_native.c ALSA: pcm: Fix potential AB/BA lock with buffer_mutex and mmap_lock 2022-03-30 14:29:49 +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 ALSA: timer: Constify snd_timer_hardware definitions 2020-01-03 09:24:07 +01:00
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 2022-03-30 14:29:49 +02:00
rawmidi_compat.c ALSA: rawmidi: Add framing mode 2021-05-17 16:02:44 +02:00
rawmidi.c ALSA: rawmidi: Take buffer refcount while draining output 2022-06-20 09:36:04 +02:00
seq_device.c ALSA: seq: Fix a potential UAF by wrong private_free call order 2021-09-30 14:13:22 +02:00
sound_oss.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
sound.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
timer_compat.c ALSA: Convert strlcpy to strscpy when return value is unused 2021-01-08 09:30:05 +01:00
timer.c ALSA: timer: Unconditionally unlink slave instances, too 2021-11-05 11:27:27 +01:00
vmaster.c ALSA: Replace the word "slave" in vmaster API 2020-07-20 10:10:47 +02:00