Finally, when userspace calls rmdir(2) on the item or group,
ct_group_ops->drop_item() is called. As a config_group is also a
-config_item, it is not necessary for a seperate drop_group() method.
+config_item, it is not necessary for a separate drop_group() method.
The subsystem must config_item_put() the reference that was initialized
upon item allocation. If a subsystem has no work to do, it may omit
the ct_group_ops->drop_item() method, and configfs will call