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Shuah Khan committed 10cb0504598
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: Shuah Khan <shuah@kernel.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>