===== net/sched/sch_api.c 1.47 vs edited =====
--- 1.47/net/sched/sch_api.c	2005-04-01 14:35:56 +10:00
+++ edited/net/sched/sch_api.c	2005-04-16 08:47:16 +10:00
@@ -608,9 +608,9 @@
 			return err;
 		if (q) {
 			qdisc_notify(skb, n, clid, q, NULL);
-			spin_lock_bh(&dev->queue_lock);
+			qdisc_lock_tree(dev);
 			qdisc_destroy(q);
-			spin_unlock_bh(&dev->queue_lock);
+			qdisc_unlock_tree(dev);
 		}
 	} else {
 		qdisc_notify(skb, n, clid, NULL, q);
@@ -743,17 +743,17 @@
 		err = qdisc_graft(dev, p, clid, q, &old_q);
 		if (err) {
 			if (q) {
-				spin_lock_bh(&dev->queue_lock);
+				qdisc_lock_tree(dev);
 				qdisc_destroy(q);
-				spin_unlock_bh(&dev->queue_lock);
+				qdisc_unlock_tree(dev);
 			}
 			return err;
 		}
 		qdisc_notify(skb, n, clid, old_q, q);
 		if (old_q) {
-			spin_lock_bh(&dev->queue_lock);
+			qdisc_lock_tree(dev);
 			qdisc_destroy(old_q);
-			spin_unlock_bh(&dev->queue_lock);
+			qdisc_unlock_tree(dev);
 		}
 	}
 	return 0;