[PATCH] e1000: fix napi crash on ifdown during traffic

Signed off by: Jesse Brandeburg

drivers/net/e1000/e1000_main.c

@@ -52,7 +52,7 @@
 
 char e1000_driver_name[] = "e1000";
 char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver";
-char e1000_driver_version[] = "5.2.52-k2";
+char e1000_driver_version[] = "5.2.52-k4";
 char e1000_copyright[] = "Copyright (c) 1999-2004 Intel Corporation.";
 
 /* e1000_pci_tbl - PCI Device ID Table
@@ -2143,6 +2143,7 @@ e1000_clean(struct net_device *netdev, int *budget)
 	if(work_done < work_to_do || !netif_running(netdev)) {
 		netif_rx_complete(netdev);
 		e1000_irq_enable(adapter);
+		return 0;
 	}
 
 	return (work_done >= work_to_do);