ALSA: echoaudio: Fix potential Oops in snd_echo_resume()
authorDinghao Liu <dinghao.liu@zju.edu.cn>
Thu, 13 Aug 2020 07:46:30 +0000 (15:46 +0800)
committerTakashi Iwai <tiwai@suse.de>
Thu, 13 Aug 2020 09:21:05 +0000 (11:21 +0200)
commit5a25de6df789cc805a9b8ba7ab5deef5067af47e
treead3e94516416883941fd0fe5e68265f45e599daf
parentd96f27c80b65437a7b572647ecb4717ec9a50c98
ALSA: echoaudio: Fix potential Oops in snd_echo_resume()

Freeing chip on error may lead to an Oops at the next time
the system goes to resume. Fix this by removing all
snd_echo_free() calls on error.

Fixes: 47b5d028fdce8 ("ALSA: Echoaudio - Add suspend support #2")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Link: https://lore.kernel.org/r/20200813074632.17022-1-dinghao.liu@zju.edu.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/pci/echoaudio/echoaudio.c