-stable review patch.  If anyone has any objections, please let us know.
---------------------

From: Dan Carpenter <error27@gmail.com>

upstream commit: 996ff68d8b358885c1de82a45517c607999947c7

Cc: stable@kernel.org
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
---
 drivers/char/raw.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/char/raw.c
+++ b/drivers/char/raw.c
@@ -90,6 +90,7 @@ out1:
 	blkdev_put(bdev, filp->f_mode);
 out:
 	mutex_unlock(&raw_mutex);
+	unlock_kernel();
 	return err;
 }