1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 7dcaa09b3c20..50f2dd9e1bb2 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1444,7 +1444,6 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos);
 static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
 {
         u16 command;
-        u32 bar;
         u8 __iomem *csr;
         u8 cmd_hi;
 
@@ -1476,12 +1475,12 @@ static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
          * re-enable them when it's ready.
          */
         pci_read_config_word(dev, PCI_COMMAND, &command);
-        pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar);
 
-        if (!(command & PCI_COMMAND_MEMORY) || !bar)
+        if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0))
                 return;
 
-        csr = ioremap(bar, 8);
+        /* Convert from PCI bus to resource space.  */
+        csr = ioremap(pci_resource_start(dev, 0), 8);
         if (!csr) {
                 printk(KERN_WARNING "PCI: Can't map %s e100 registers\n",
                         pci_name(dev));