ALSA: hda/cs8409: Fix possible NULL dereference

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[ Upstream commit c9bd4a82b4 ]

If snd_hda_gen_add_kctl fails to allocate memory and returns NULL, then
NULL pointer dereference will occur in the next line.

Since dolphin_fixups function is a hda_fixup function which is not supposed
to return any errors, add simple check before dereference, ignore the fail.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 20e5077241 ("ALSA: hda/cs8409: Add support for dolphin")
Signed-off-by: Murad Masimov <m.masimov@maxima.ru>
Link: https://patch.msgid.link/20241010221649.1305-1-m.masimov@maxima.ru
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Murad Masimov 2024-10-11 01:16:45 +03:00 • committed by Greg Kroah-Hartman

parent ea45f1e87c

commit 21dc97d508

1 changed files with 3 additions and 2 deletions

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sound/pci/hda/patch_cs8409.c

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