bnxt_en: Improve AER slot reset.

[ Upstream commit bae361c54fb6ac6eba3b4762f49ce14beb73ef13 ]

Improve the slot reset sequence by disabling the device to prevent bad
DMAs if slot reset fails.  Return the proper result instead of always
PCI_ERS_RESULT_RECOVERED to the caller.

Fixes: 6316ea6db93d ("bnxt_en: Enable AER support.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 999f6ad..dca58d2 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -9300,8 +9300,11 @@ static pci_ers_result_t bnxt_io_slot_reset(struct pci_dev *pdev)
                }
        }
 
-       if (result != PCI_ERS_RESULT_RECOVERED && netif_running(netdev))
-               dev_close(netdev);
+       if (result != PCI_ERS_RESULT_RECOVERED) {
+               if (netif_running(netdev))
+                       dev_close(netdev);
+               pci_disable_device(pdev);
+       }
 
        rtnl_unlock();
 
@@ -9312,7 +9315,7 @@ static pci_ers_result_t bnxt_io_slot_reset(struct pci_dev *pdev)
                         err); /* non-fatal, continue */
        }
 
-       return PCI_ERS_RESULT_RECOVERED;
+       return result;
 }
 
 /**