===== net/ipv6/addrconf.c 1.120 vs edited =====
--- 1.120/net/ipv6/addrconf.c	2004-11-16 09:08:09 +11:00
+++ edited/net/ipv6/addrconf.c	2004-11-19 20:43:45 +11:00
@@ -2987,8 +2987,13 @@
 	switch (event) {
 	case RTM_NEWADDR:
 		dst_hold(&ifp->rt->u.dst);
-		if (ip6_ins_rt(ifp->rt, NULL, NULL))
+		spin_lock_bh(&ifp->lock);
+
+		if (ifp->dead || ip6_ins_rt(ifp->rt, NULL, NULL))
 			dst_release(&ifp->rt->u.dst);
+
+		spin_unlock_bh(&ifp->lock);
+
 		if (ifp->idev->cnf.forwarding)
 			addrconf_join_anycast(ifp);
 		break;
@@ -2996,11 +3001,16 @@
 		if (ifp->idev->cnf.forwarding)
 			addrconf_leave_anycast(ifp);
 		addrconf_leave_solict(ifp->idev, &ifp->addr);
+
 		dst_hold(&ifp->rt->u.dst);
+		spin_lock_bh(&ifp->lock);
+
 		if (ip6_del_rt(ifp->rt, NULL, NULL))
 			dst_free(&ifp->rt->u.dst);
 		else
 			dst_release(&ifp->rt->u.dst);
+
+		spin_unlock_bh(&ifp->lock);
 		break;
 	}
 }