diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 6b628de..c1bdfb4 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -273,6 +273,8 @@
 
 	for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
 		r = bus->resource[i];
+		if (r == &ioport_resource || r == &iomem_resource)
+			continue;
 		if (r && (r->flags & type_mask) == type && !r->parent)
 			return r;
 	}