[media] V4L: mt9m032: fix two dead-locks

Fix a copy-paste typo and a nested locking function call in mt9m032.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/mt9m032.c

@@ -392,10 +392,11 @@ static int mt9m032_set_pad_format(struct v4l2_subdev *subdev,
 	}
 
 	/* Scaling is not supported, the format is thus fixed. */
-	ret = mt9m032_get_pad_format(subdev, fh, fmt);
+	fmt->format = *__mt9m032_get_pad_format(sensor, fh, fmt->which);
+	ret = 0;
 
 done:
-	mutex_lock(&sensor->lock);
+	mutex_unlock(&sensor->lock);
 	return ret;
 }