[PATCH 2.6.11.7] sch_htb: Drop packet when direct queue is full

[Asim Shankar <asimshankar@xxxxxxxxx>]

htb_enqueue(): Free skb and return NET_XMIT_DROP if a packet is destined 
for the direct_queue but the direct_queue is full. (Before patch: 
Erroneously returned NET_XMIT_SUCCESS even though packet was not enqueued)
Signed-off-by: Asim Shankar <asimshankar@xxxxxxxxx>

--- linux-2.6.11.7/net/sched/sch_htb.c.orig     2005-04-21 17:40:05.305709014 
-0500
+++ linux-2.6.11.7/net/sched/sch_htb.c  2005-04-21 17:35:27.872624173 -0500
@@ -717,6 +717,10 @@ static int htb_enqueue(struct sk_buff *s
        if (q->direct_queue.qlen < q->direct_qlen) {
            __skb_queue_tail(&q->direct_queue, skb);
            q->direct_pkts++;
+       } else {
+           kfree_skb(skb);
+           sch->qstats.drops++;
+           return NET_XMIT_DROP;
        }
 #ifdef CONFIG_NET_CLS_ACT
     } else if (!cl) {