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linux/sound/core
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Takashi Iwai d5a1ca7b59 ALSA: control: Avoid WARN() for symlink errors 
[ Upstream commit b2e538a982 ]

Using WARN() for showing the error of symlink creations don't give
more information than telling that something goes wrong, since the
usual code path is a lregister callback from each control element
creation.  More badly, the use of WARN() rather confuses fuzzer as if
it were serious issues.

This patch downgrades the warning messages to use the normal dev_err()
instead of WARN().  For making it clearer, add the function name to
the prefix, too.

Fixes: a135dfb5de ("ALSA: led control - add sysfs kcontrol LED marking layer")
Reported-by: syzbot+4e7919b09c67ffd198ae@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/675664c7.050a0220.a30f1.018c.GAE@google.com
Link: https://patch.msgid.link/20241209095614.4273-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-12-19 18:11:30 +01:00
..
oss ALSA: mixer_oss: Remove some incorrect kfree_const() usages 2024-10-10 11:57:19 +02:00
seq ALSA: seq: ump: Fix seq port updates per FB info notify 2024-12-14 19:59:48 +01:00
compress_offload.c ALSA: compress: Don't embed device 2023-08-17 09:24:15 +02:00
control.c ALSA: control: Apply sanity check of input values for user elements 2024-09-12 11:11:28 +02:00
control_compat.c ALSA: control: Introduce unlocked version for snd_ctl_find_*() helpers 2023-07-20 10:03:00 +02:00
control_led.c ALSA: control: Avoid WARN() for symlink errors 2024-12-19 18:11:30 +01:00
ctljack.c ALSA: Convert strlcpy to strscpy when return value is unused 2021-01-08 09:30:05 +01:00
device.c ALSA: core: Fix missing return value comments for kernel docs 2022-07-13 13:42:38 +02:00
hrtimer.c ALSA: timer: Replace tasklet with work 2020-09-09 18:32:52 +02:00
hwdep.c ALSA: hwdep: Don't embed device 2023-08-17 09:24:01 +02:00
hwdep_compat.c ALSA: compat_ioctl: avoid compat_alloc_user_space 2020-09-21 10:37:07 +02:00
info.c ALSA: info: Fix potential deadlock at disconnection 2023-11-28 17:20:10 +00:00
info_oss.c ALSA: oss: remove useless NULL check before kfree 2021-12-06 10:08:13 +01:00
init.c ALSA: core: add isascii() check to card ID generator 2024-10-10 11:57:45 +02:00
isadma.c sound updates for 6.0-rc1 2022-08-06 10:19:51 -07:00
jack.c ALSA: core: Remove debugfs at disconnection 2024-06-12 11:12:55 +02:00
Kconfig ALSA: ump: Add legacy raw MIDI support 2023-05-23 12:11:09 +02:00
Makefile ALSA: Drop leftover snd-rtctimer stuff from Makefile 2024-03-06 14:48:37 +00:00
memalloc.c ALSA: memalloc: Workaround for Xen PV 2023-01-27 09:16:24 +01:00
memalloc_local.h ALSA: memalloc: remove snd_dma_sg_ops declaration 2022-09-09 09:09:40 +02:00
memory.c ALSA: core: Add memory copy helpers between iov_iter and iomem 2023-08-18 12:18:16 +02:00
misc.c ALSA: core: Add async signal helpers 2022-07-29 12:57:10 +02:00
pcm.c ALSA: pcm: fix out-of-bounds in snd_pcm_state_names 2023-12-13 18:45:20 +01:00
pcm_compat.c ALSA: pcm: Fix missing fixup call in compat hw_refine ioctl 2023-08-29 16:03:11 +02:00
pcm_dmaengine.c ALSA: pcm_dmaengine: Don't synchronize DMA channel when DMA is paused 2024-07-27 11:34:10 +02:00
pcm_drm_eld.c ALSA: pcm: fix ELD constraints for (E)AC3, DTS(-HD) and MLP formats 2023-06-25 08:42:53 +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 error checks of default read/write copy ops 2023-09-02 08:11:48 +02:00
pcm_local.h ALSA: pcm: Revert "ALSA: pcm: rewrite snd_pcm_playback_silence()" 2023-05-05 18:23:48 +02:00
pcm_memory.c ALSA: pcm: Fix potential data race at PCM memory allocation helpers 2023-07-03 14:52:27 +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: Add sanity NULL check for the default mmap fault handler 2024-12-09 10:32:51 +01:00
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 ALSA: pcm: fix tracing reason in hw_ptr_error 2022-11-28 14:55:41 +01:00
rawmidi.c ALSA: rawmidi: Fix NULL dereference at proc read 2023-09-16 08:08:05 +02:00
rawmidi_compat.c ALSA: rawmidi: UMP support 2023-05-23 12:10:54 +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.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
sound_oss.c ALSA: oss: Fix potential deadlock at unregistration 2022-10-11 09:02:43 +02:00
timer.c ALSA: timer: Relax start tick time check for slave timer elements 2024-08-29 17:33:57 +02:00
timer_compat.c ALSA: Convert strlcpy to strscpy when return value is unused 2021-01-08 09:30:05 +01:00
ump.c ALSA: usb-audio: Update UMP group attributes for GTB blocks, too 2024-12-14 20:00:23 +01:00
ump_convert.c ALSA: ump: Explicitly reset RPN with Null RPN 2024-09-08 07:54:30 +02:00
vmaster.c ALSA: vmaster: Add snd_ctl_add_followers() helper 2023-07-21 09:37:47 +02:00