diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c
index 924f8e26789d..65e65903faa0 100644
--- a/drivers/atm/iphase.c
+++ b/drivers/atm/iphase.c
@@ -2618,7 +2618,7 @@ static void ia_close(struct atm_vcc *vcc)
         if (vcc->qos.txtp.traffic_class != ATM_NONE) {
            iadev->close_pending++;
 	   prepare_to_wait(&iadev->timeout_wait, &wait, TASK_UNINTERRUPTIBLE);
-	   schedule_timeout(50);
+	   schedule_timeout(msecs_to_jiffies(500));
 	   finish_wait(&iadev->timeout_wait, &wait);
            spin_lock_irqsave(&iadev->tx_lock, flags); 
            while((skb = skb_dequeue(&iadev->tx_backlog))) {