Commit 10cb0504 authored by Shuah Khan's avatar Shuah Khan Committed by Mauro Carvalho Chehab
Browse files

media: Clear devnode->media_dev holding media_devnode_lock 



Fix media_devnode_unregister() to clear devnode->media_dev while holding
media_devnode_lock. media_devnode_register()'s cdev_add_error handling
does this correctly.

Signed-off-by: default avatarShuah Khan <shuah@kernel.org>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
parent 898bc40b

drivers/media/media-devnode.c

+2 −1
Original line number Diff line number Diff line
@@ -291,8 +291,9 @@ void media_devnode_unregister(struct media_devnode *devnode) 
	mutex_lock(&media_devnode_lock);

	/* Delete the cdev on this minor as well */

	cdev_device_del(&devnode->cdev, &devnode->dev);

	mutex_unlock(&media_devnode_lock);

	devnode->media_dev = NULL;

	mutex_unlock(&media_devnode_lock);



	put_device(&devnode->dev);

}