commit 88336e174645948da269e1812f138f727cd2896b
author Max Kellermann <max@duempel.org> Mon Mar 21 04:33:12 2016 -0700
committer Mauro Carvalho Chehab <mchehab@osg.samsung.com> Wed Apr 06 05:39:56 2016 -0700
tree 76f99303d1df74dc3f616e0323b3579cd28d8bb5
parent 952f8eef901b170dbe6b48e80f098be5d835a82c

[media] media-devnode: add missing mutex lock in error handler

We should protect the device unregister patch too, at the error
condition.

Signed-off-by: Max Kellermann <max@duempel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/media-devnode.c

diff --git a/drivers/media/media-devnode.c b/drivers/media/media-devnode.c
index 29409f4..64a4b1e 100644
--- a/drivers/media/media-devnode.c
+++ b/drivers/media/media-devnode.c
@@ -267,8 +267,11 @@
 	return 0;
 
 error:
+	mutex_lock(&media_devnode_lock);
 	cdev_del(&mdev->cdev);
 	clear_bit(mdev->minor, media_devnode_nums);
+	mutex_unlock(&media_devnode_lock);
+
 	return ret;
 }