Haoxiang Li 830988b6cf ALSA: ac97: fix a double free in snd_ac97_controller_register() ...

If ac97_add_adapter() fails, put_device() is the correct way to drop
the device reference. kfree() is not required.
Add kfree() if idr_alloc() fails and in ac97_adapter_release() to do
the cleanup.

Found by code review.

Fixes: 74426fbff6 ("ALSA: ac97: add an ac97 bus")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <lihaoxiang@isrc.iscas.ac.cn>
Link: https://patch.msgid.link/20251219162845.657525-1-lihaoxiang@isrc.iscas.ac.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>

2025-12-23 10:43:43 +01:00

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ac97_core.h

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bus.c

ALSA: ac97: fix a double free in snd_ac97_controller_register()

2025-12-23 10:43:43 +01:00

codec.c

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Kconfig

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Makefile

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snd_ac97_compat.c

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