[PATCH] e1000: Fix kernel panic when the interface is brought down while

the NAPI enabled driver is under stress
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

drivers/net/e1000/e1000_main.c

@@ -2162,6 +2162,9 @@ e1000_clean(struct net_device *netdev, int *budget)
 	int tx_cleaned;
 	int work_done = 0;
 	
+	if (!netif_carrier_ok(netdev))
+		goto quit_polling;
+
 	tx_cleaned = e1000_clean_tx_irq(adapter);
 	e1000_clean_rx_irq(adapter, &work_done, work_to_do);
 
@@ -2171,7 +2174,7 @@ e1000_clean(struct net_device *netdev, int *budget)
 	/* if no Rx and Tx cleanup work was done, exit the polling mode */
 	if(!tx_cleaned || (work_done < work_to_do) || 
 				!netif_running(netdev)) {
-		netif_rx_complete(netdev);
+quit_polling:	netif_rx_complete(netdev);
 		e1000_irq_enable(adapter);
 		return 0;
 	}