atomic_notifier_chain_unregister — Remove notifier from an atomic notifier chain
int atomic_notifier_chain_unregister
(struct atomic_notifier_head * nh, struct notifier_block * n);
Pointer to head of the atomic notifier chain
Entry to remove from notifier chain
Removes a notifier from an atomic notifier chain.
Returns zero on success or -ENOENT on failure.