qlge: return PCI_ERS_RESULT_DISCONNECT on permanent failure

PCI drivers that implement the struct pci_error_handlers' error_detected
callback should return PCI_ERS_RESULT_DISCONNECT if the state passed in is
pci_channel_io_perm_failure. This patch fixes the issue for qlge.
Signed-off-by: NDean Nelson <dnelson@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/qlge/qlge_main.c

@@ -4076,6 +4076,11 @@ static pci_ers_result_t qlge_io_error_detected(struct pci_dev *pdev,
 	struct net_device *ndev = pci_get_drvdata(pdev);
 	struct ql_adapter *qdev = netdev_priv(ndev);
 
+	netif_device_detach(ndev);
+
+	if (state == pci_channel_io_perm_failure)
+		return PCI_ERS_RESULT_DISCONNECT;
+
 	if (netif_running(ndev))
 		ql_adapter_down(qdev);