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ALSA: echoaudio: add a check for ioremap_nocache
authorKangjie Lu <kjlu@umn.edu>
Fri, 15 Mar 2019 03:58:29 +0000 (22:58 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 20 Apr 2019 07:15:00 +0000 (09:15 +0200)
commit7d831a0512987fc2af6b3a23ed44a4e96b79f26a
treedfa7bc32b54002d5c6afd258b6a3eed55e03d0cetree | snapshot
parentce1bdbed2097bffb0cabc8381f3727f8698ff991commit | diff
ALSA: echoaudio: add a check for ioremap_nocache

[ Upstream commit 6ade657d6125ec3ec07f95fa51e28138aef6208f ]

In case ioremap_nocache fails, the fix releases chip and returns
an error code upstream to avoid NULL pointer dereference.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
sound/pci/echoaudio/echoaudio.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git