ALSA: usb-audio: Fix possible NULL pointer dereference in snd_usb_pcm_has_fixed_rate()

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[ Upstream commit 92a9c0ad86 ]

The subs function argument may be NULL, so do not use it before the NULL check.

Fixes: 291e9da914 ("ALSA: usb-audio: Always initialize fixed_rate in snd_usb_find_implicit_fb_sync_format()")
Reported-by: coverity-bot <keescook@chromium.org>
Link: https://lore.kernel.org/alsa-devel/202301121424.4A79A485@keescook/
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230113085311.623325-1-perex@perex.cz
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Jaroslav Kysela 2023-01-13 09:53:11 +01:00 • committed by Greg Kroah-Hartman

parent 3944162821

commit a474d4ad59

1 changed files with 2 additions and 1 deletions

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sound/usb/pcm.c

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