Re: [PATCH] ALSA: ac97: fix a double free in snd_ac97_controller_register()

On Fri, 19 Dec 2025 17:28:45 +0100, Haoxiang Li wrote:

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: 74426fbff66e ("ALSA: ac97: add an ac97 bus") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li lihaoxiang@isrc.iscas.ac.cn

Thanks, applied now.

Takashi