1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index bafb3c3d4a8..5b3771a7a41 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -657,6 +657,11 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max,
         dev_dbg(&dev->dev, "scanning [bus %02x-%02x] behind bridge, pass %d\n",
                 secondary, subordinate, pass);
 
+        if (!primary && (primary != bus->number) && secondary && subordinate) {
+                dev_warn(&dev->dev, "Primary bus is hard wired to 0\n");
+                primary = bus->number;
+        }
+
         /* Check if setup is sensible at all */
         if (!pass &&
             (primary != bus->number || secondary <= bus->number)) {