igb: fixup AER with proper error handling

Based on Peter Waskiewicz patch for ixgbe.  Add error handling based on
Hemminger's recommendation.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 17 insertions, 3 deletions

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index dad742f8d23a..25df7c931064 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1050,7 +1050,12 @@ static int __devinit igb_probe(struct pci_dev *pdev,
         if (err)
                 goto err_pci_reg;
 
-        pci_enable_pcie_error_reporting(pdev);
+        err = pci_enable_pcie_error_reporting(pdev);
+        if (err) {
+                dev_err(&pdev->dev, "pci_enable_pcie_error_reporting failed "
+                        "0x%x\n", err);
+                /* non-fatal, continue */
+        }
 
         pci_set_master(pdev);
         pci_save_state(pdev);
@@ -1343,6 +1348,7 @@ static void __devexit igb_remove(struct pci_dev *pdev)
 #ifdef CONFIG_IGB_DCA
         struct e1000_hw *hw = &adapter->hw;
 #endif
+        int err;
 
         /* flush_scheduled work may reschedule our watchdog task, so
          * explicitly disable watchdog tasks from being rescheduled  */
@@ -1382,7 +1388,10 @@ static void __devexit igb_remove(struct pci_dev *pdev)
 
         free_netdev(netdev);
 
-        pci_disable_pcie_error_reporting(pdev);
+        err = pci_disable_pcie_error_reporting(pdev);
+        if (err)
+                dev_err(&pdev->dev,
+                        "pci_disable_pcie_error_reporting failed 0x%x\n", err);
 
         pci_disable_device(pdev);
 }
@@ -4495,7 +4504,12 @@ static pci_ers_result_t igb_io_slot_reset(struct pci_dev *pdev)
                 result = PCI_ERS_RESULT_RECOVERED;
         }
 
-        pci_cleanup_aer_uncorrect_error_status(pdev);
+        err = pci_cleanup_aer_uncorrect_error_status(pdev);
+        if (err) {
+                dev_err(&pdev->dev, "pci_cleanup_aer_uncorrect_error_status "
+                        "failed 0x%0x\n", err);
+                /* non-fatal, continue */
+        }
 
         return result;
 }