ALSA: echoaudio: Fix potential Oops in snd_echo_resume()
commit306df54b5b8a04a7f1cee3c6f7f03fb5b565ce3b
authorDinghao Liu <dinghao.liu@zju.edu.cn>
Thu, 13 Aug 2020 07:46:30 +0000 (13 15:46 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 21 Aug 2020 11:05:38 +0000 (21 13:05 +0200)
treece7412fe2157dbeef4b2f887654dc03b44d42c34
parent8bc48c35a983f4f43fb2abf990821659475ab835
ALSA: echoaudio: Fix potential Oops in snd_echo_resume()

[ Upstream commit 5a25de6df789cc805a9b8ba7ab5deef5067af47e ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
sound/pci/echoaudio/echoaudio.c