igb: return PCI_ERS_RESULT_DISCONNECT on permanent error

PCI drivers that implement the io_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 igb.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 468356d124ea..be480292aba1 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -5339,6 +5339,9 @@ static pci_ers_result_t igb_io_error_detected(struct pci_dev *pdev,
 
         netif_device_detach(netdev);
 
+        if (state == pci_channel_io_perm_failure)
+                return PCI_ERS_RESULT_DISCONNECT;
+
         if (netif_running(netdev))
                 igb_down(adapter);
         pci_disable_device(pdev);