e100: account for closed interface when shutting down

Account for the interface being closed before disabling polling
on a device, to fix shutdown on some systems that explcitly close
the netdevice before calling shutdown.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>

drivers/net/e100.c

@@ -2719,7 +2719,10 @@ static int e100_suspend(struct pci_dev *pdev, pm_message_t state)
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct nic *nic = netdev_priv(netdev);
 
-	netif_poll_disable(nic->netdev);
+#ifdef CONFIG_E100_NAPI
+	if (netif_running(netdev))
+		netif_poll_disable(nic->netdev);
+#endif
 	del_timer_sync(&nic->watchdog);
 	netif_carrier_off(nic->netdev);
 
@@ -2763,7 +2766,10 @@ static void e100_shutdown(struct pci_dev *pdev)
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct nic *nic = netdev_priv(netdev);
 
-	netif_poll_disable(nic->netdev);
+#ifdef CONFIG_E100_NAPI
+	if (netif_running(netdev))
+		netif_poll_disable(nic->netdev);
+#endif
 	del_timer_sync(&nic->watchdog);
 	netif_carrier_off(nic->netdev);