tree d0c6d6650a244f4860edff9f9d20ae9ea98dd85f
parent 408cc293c29ada769ae772420a39961320da1854
author Apollon Oikonomopoulos <apollon@noc.grnet.gr> 1291715010 +0000
committer David S. Miller <davem@davemloft.net> 1291839224 -0800

x25: decrement netdev reference counts on unload

x25 does not decrement the network device reference counts on module unload.
Thus unregistering any pre-existing interface after unloading the x25 module
hangs and results in

 unregister_netdevice: waiting for tap0 to become free. Usage count = 1

This patch decrements the reference counts of all interfaces in x25_link_free,
the way it is already done in x25_link_device_down for NETDEV_DOWN events.

Signed-off-by: Apollon Oikonomopoulos <apollon@noc.grnet.gr>
Signed-off-by: David S. Miller <davem@davemloft.net>