| From: Max Kellermann <max@duempel.org> |
| Date: Mon, 21 Mar 2016 04:33:12 -0700 |
| Subject: [media] media-devnode: add missing mutex lock in error handler |
| |
| commit 88336e174645948da269e1812f138f727cd2896b upstream. |
| |
| 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> |
| Signed-off-by: Ben Hutchings <ben@decadent.org.uk> |
| --- |
| drivers/media/media-devnode.c | 3 +++ |
| 1 file changed, 3 insertions(+) |
| |
| --- a/drivers/media/media-devnode.c |
| +++ b/drivers/media/media-devnode.c |
| @@ -282,8 +282,11 @@ int __must_check media_devnode_register( |
| 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; |
| } |
| |
