media: radio: wl1273: fix interrupt masking on release
authorJohan Hovold <johan@kernel.org>
Thu, 10 Oct 2019 13:13:32 +0000 (10:13 -0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 17 Dec 2019 19:07:49 +0000 (20:07 +0100)
commit158256b919c8587e871039ac111ed4ccef2b011d
treebfe8a078fe622329c6a75bb6e0bae0bce4b50321
parent192e6b59fd44ace17f8ea9657fd4214bb97db58c
media: radio: wl1273: fix interrupt masking on release

commit 1091eb830627625dcf79958d99353c2391f41708 upstream.

If a process is interrupted while accessing the radio device and the
core lock is contended, release() could return early and fail to update
the interrupt mask.

Note that the return value of the v4l2 release file operation is
ignored.

Fixes: 87d1a50ce451 ("[media] V4L2: WL1273 FM Radio: TI WL1273 FM radio driver")
Cc: stable <stable@vger.kernel.org> # 2.6.38
Cc: Matti Aaltonen <matti.j.aaltonen@nokia.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/media/radio/radio-wl1273.c