/* This function unregisters volume notifier @nm and returns zero in case of success and a negative error code in case of failure.  */
int ubi_unregister_volume_notifier(struct notifier_block *nb)
/* This function unregisters volume notifier @nm and returns zero in case of success and a negative error code in case of failure.  */
int ubi_unregister_volume_notifier(struct notifier_block *nb)
{
	return blocking_notifier_chain_unregister(&ubi_notifiers, nb);
}