e1000e: Fix oops caused by ASPM patch.

[safe/jmp/linux-2.6] / drivers / net / e1000e / netdev.c

diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index fb8fc7d..dbf8178 100644 (file)
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -4633,6 +4633,9 @@ static void __e1000e_disable_aspm(struct pci_dev *pdev, u16 state)
        reg16 &= ~state;
        pci_write_config_word(pdev, pos + PCI_EXP_LNKCTL, reg16);
 
+       if (!pdev->bus->self)
+               return;
+
        pos = pci_pcie_cap(pdev->bus->self);
        pci_read_config_word(pdev->bus->self, pos + PCI_EXP_LNKCTL, &reg16);
        reg16 &= ~state;