Name
unregister_netdevice_notifier — 
     unregister a network notifier block
 
Synopsis
| int unregister_netdevice_notifier ( | struct notifier_block * nb ); | 
 
Description
   Unregister a notifier previously registered by
   register_netdevice_notifier. The notifier is unlinked into the
   kernel structures and may then be reused. A negative errno code
   is returned on a failure.