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| author | Max Kellermann <max@duempel.org> | 2016-03-21 04:33:12 -0700 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2020-04-28 19:03:49 +0100 |
| commit | 7822acac3a2ca56bf519a9ac4e2d381454dc3b62 (patch) | |
| tree | b674e783dca19ac00ffc7cd908dedf8136e57904 | |
| parent | d4f640d3c8e585f0accf523515daaa303108a951 (diff) | |
| download | linux-stable-7822acac3a2ca56bf519a9ac4e2d381454dc3b62.tar.gz | |
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>
| -rw-r--r-- | drivers/media/media-devnode.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/media-devnode.c b/drivers/media/media-devnode.c index 6c56aebd8db0f..86c7c3732c84d 100644 --- a/drivers/media/media-devnode.c +++ b/drivers/media/media-devnode.c @@ -282,8 +282,11 @@ int __must_check media_devnode_register(struct media_devnode *mdev, 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; } |