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Commit 171995e5 authored by Apollon Oikonomopoulos's avatar Apollon Oikonomopoulos Committed by David S. Miller
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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: default avatarApollon Oikonomopoulos <apollon@noc.grnet.gr>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 408cc293

net/x25/x25_link.c

+1 −0
Original line number Diff line number Diff line
@@ -394,6 +394,7 @@ void __exit x25_link_free(void) 
	list_for_each_safe(entry, tmp, &x25_neigh_list) {

		nb = list_entry(entry, struct x25_neigh, node);

		__x25_remove_neigh(nb);

		dev_put(nb->dev);

	}

	write_unlock_bh(&x25_neigh_list_lock);

}