veth: Do a better job cleaning up on rmmod

The veth driver doesn't clean itself up very well when removed.  This
commit destroys any outstanding veth devices and then unregisters its
sysfs entry.

diff --git a/datapath/linux-2.6/compat-2.6/veth.c b/datapath/linux-2.6/compat-2.6/veth.c
index 66aae0b..26d8dd9 100644 (file)
--- a/datapath/linux-2.6/compat-2.6/veth.c
+++ b/datapath/linux-2.6/compat-2.6/veth.c
@@ -526,7 +526,17 @@ static __init int veth_init(void)
 
 static __exit void veth_exit(void)
 {
+       struct veth_priv *p, *n;
+
+       rtnl_lock();
+
+       list_for_each_entry_safe(p, n, &veth_list, list)
+               veth_dellink(p->dev);
+
+       rtnl_unlock();
+
        unregister_netdevice_notifier(&veth_notifier_block);
+       veth_destroy_sysfs();
 }
 
 module_init(veth_init);