1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 3881918f5382..cea37e0837ff 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1722,6 +1722,15 @@ static int __devinit igb_probe(struct pci_dev *pdev,
         u16 eeprom_apme_mask = IGB_EEPROM_APME;
         u32 part_num;
 
+        /* Catch broken hardware that put the wrong VF device ID in
+         * the PCIe SR-IOV capability.
+         */
+        if (pdev->is_virtfn) {
+                WARN(1, KERN_ERR "%s (%hx:%hx) should not be a VF!\n",
+                     pci_name(pdev), pdev->vendor, pdev->device);
+                return -EINVAL;
+        }
+
         err = pci_enable_device_mem(pdev);
         if (err)
                 return err;