From: Sylwester Nawrocki <s.nawrocki@samsung.com>
Date: Sat, 21 Apr 2012 21:46:30 +0000 (-0300)
Subject: media: s5p-fimc: Fix locking in subdev set_crop op
X-Git-Tag: v3.3.7~37
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=817a2eb566911b127a57cf3561bb88c98e4b6348;p=karo-tx-linux.git

media: s5p-fimc: Fix locking in subdev set_crop op

commit e985dbf7d93e2a3e114b4525413e50f83613e0cb upstream.

When setting TRY crop on the sub-device the mutex was erroneously acquired
rather than released on exit path. This bug is present in kernels starting
from v3.2.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c
index a9e9653beeb4..8dab7fd81fd5 100644
--- a/drivers/media/video/s5p-fimc/fimc-capture.c
+++ b/drivers/media/video/s5p-fimc/fimc-capture.c
@@ -1316,7 +1316,7 @@ static int fimc_subdev_set_crop(struct v4l2_subdev *sd,
 	fimc_capture_try_crop(ctx, r, crop->pad);
 
 	if (crop->which == V4L2_SUBDEV_FORMAT_TRY) {
-		mutex_lock(&fimc->lock);
+		mutex_unlock(&fimc->lock);
 		*v4l2_subdev_get_try_crop(fh, crop->pad) = *r;
 		return 0;
 	}