diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index be76eba..d427277 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -50,7 +50,7 @@
 	if (res->flags & IORESOURCE_PCI_FIXED)
 		return;
 
-	pcibios_resource_to_bus(dev, &region, res);
+	pcibios_resource_to_bus(dev->bus, &region, res);
 
 	new = region.start | (res->flags & PCI_REGION_FLAG_MASK);
 	if (res->flags & IORESOURCE_IO)