diff -urN linux-2.4.3/kernel/timer.c linux/kernel/timer.c
--- linux-2.4.3/kernel/timer.c	Thu Dec 14 20:52:22 2000
+++ linux/kernel/timer.c	Fri Apr 13 13:26:08 2001
@@ -194,6 +194,7 @@
 	if (!timer_pending(timer))
 		return 0;
 	list_del(&timer->list);
+	timer->list.next = timer->list.prev = NULL;
 	return 1;
 }
 
@@ -217,7 +218,6 @@
 
 	spin_lock_irqsave(&timerlist_lock, flags);
 	ret = detach_timer(timer);
-	timer->list.next = timer->list.prev = NULL;
 	spin_unlock_irqrestore(&timerlist_lock, flags);
 	return ret;
 }
@@ -246,7 +246,6 @@
 
 		spin_lock_irqsave(&timerlist_lock, flags);
 		ret += detach_timer(timer);
-		timer->list.next = timer->list.prev = 0;
 		running = timer_is_running(timer);
 		spin_unlock_irqrestore(&timerlist_lock, flags);
 
@@ -309,7 +308,6 @@
  			data= timer->data;
 
 			detach_timer(timer);
-			timer->list.next = timer->list.prev = NULL;
 			timer_enter(timer);
 			spin_unlock_irq(&timerlist_lock);
 			fn(data);