ALSA: ac97: Fix possible NULL dereference in snd_ac97_mixer

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[ Upstream commit 79597c8bf6 ]

smatch error:
sound/pci/ac97/ac97_codec.c:2354 snd_ac97_mixer() error:
we previously assumed 'rac97' could be null (see line 2072)

remove redundant assignment, return error if rac97 is NULL.

Fixes: da3cec35dd ("ALSA: Kill snd_assert() in sound/pci/*")
Signed-off-by: Su Hui <suhui@nfschina.com>
Link: https://lore.kernel.org/r/20230615021732.1972194-1-suhui@nfschina.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Su Hui 2023-06-15 10:17:32 +08:00 • committed by Greg Kroah-Hartman

parent 5513409e07

commit 228da1fa12

1 changed files with 2 additions and 2 deletions

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sound/pci/ac97/ac97_codec.c

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