openwrt/target/linux/brcm-2.4/patches/011-wl_qdisc_war.patch

--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -84,6 +84,11 @@ int qdisc_restart(struct net_device *dev
 	struct sk_buff *skb;
 
 	/* Dequeue packet */
+	if (!q) {
+		if (net_ratelimit())
+			printk(KERN_DEBUG "HELP ME! qdisc_restart called, but no Qdisc!\n");
+		return 0;
+	}
 	if ((skb = q->dequeue(q)) != NULL) {
 		if (spin_trylock(&dev->xmit_lock)) {
 			/* Remember that the driver is grabbed by us. */
update to 2.4.37, tested on wrt54gs (#4766) SVN-Revision: 16144 2009-05-28 17:55:54 +02:00			`--- a/net/sched/sch_generic.c`
			`+++ b/net/sched/sch_generic.c`
refresh kernel patches SVN-Revision: 11214 2008-05-19 15:45:06 +02:00			`@@ -84,6 +84,11 @@ int qdisc_restart(struct net_device *dev`
add a workaround for a race-condition in the wl driver (triggered by ap+sta mode in a bridge) SVN-Revision: 5635 2006-11-24 02:48:23 +01:00			`struct sk_buff *skb;`

			`/* Dequeue packet */`
			`+ if (!q) {`
			`+ if (net_ratelimit())`
			`+ printk(KERN_DEBUG "HELP ME! qdisc_restart called, but no Qdisc!\n");`
			`+ return 0;`
			`+ }`
			`if ((skb = q->dequeue(q)) != NULL) {`
			`if (spin_trylock(&dev->xmit_lock)) {`
			`/* Remember that the driver is grabbed by us. */`