diff -ur x/linux-2.4.10.SuSE-1/drivers/isdn/isdn_net.c linux-2.4.10.SuSE-1/drivers/isdn/isdn_net.c
--- x/linux-2.4.10.SuSE-1/drivers/isdn/isdn_net.c	Mon Sep 24 15:53:51 2001
+++ linux-2.4.10.SuSE-1/drivers/isdn/isdn_net.c	Wed Sep 26 16:32:12 2001
@@ -888,7 +888,8 @@
 		isdn_all_eaz(lp->isdn_device, lp->isdn_channel);
 	}
 	isdn_net_unbind_channel(lp);
-	netdev_event(d,NETDEV_REBOOT);
+	if (!lp->master) /* never send this event to an slave device */
+		netdev_event(d,NETDEV_REBOOT);
 }
 
 typedef struct {
diff -ur x/linux-2.4.10.SuSE-1/net/core/dev.c linux-2.4.10.SuSE-1/net/core/dev.c
--- x/linux-2.4.10.SuSE-1/net/core/dev.c	Mon Sep 24 15:53:51 2001
+++ linux-2.4.10.SuSE-1/net/core/dev.c	Wed Sep 26 16:39:59 2001
@@ -626,15 +626,20 @@
  */
 void netdev_event(struct net_device *dev, int event)
 {      
-	struct dev_tq *tq = kmalloc(sizeof(*tq), GFP_ATOMIC); 
+	struct dev_tq *tq = kmalloc(sizeof(*tq), GFP_ATOMIC);
 	if (!tq)
 		return;
+	memset(tq, 0, sizeof(*tq));
 	dev_hold(dev);
 	tq->dev = dev;
 	tq->event = event;
 	tq->tq.routine = netdev_event_callback; 
 	tq->tq.data = tq;
-	schedule_task(&tq->tq); 
+	if (schedule_task(&tq->tq) == 0) {
+		printk(KERN_WARNING __FUNCTION__
+			": task for event %x not scheduled\n", event);
+		dev_put(dev);
+	} 
 }
 
 /**