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 66aae0b9387cffff596a169fab489459ac80ea57..26d8dd91a46d6d3023faeb8aedf2b33cae049b05 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);