PCI: insert busn_res in pci_create_root_bus()

That busn_res is from resources list.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

drivers/pci/probe.c

@@ -1684,6 +1684,9 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus,
 		list_move_tail(&window->list, &bridge->windows);
 		res = window->res;
 		offset = window->offset;
+		if (res->flags & IORESOURCE_BUS)
+			pci_bus_insert_busn_res(b, bus, res->end);
+		else
 			pci_bus_add_resource(b, res, 0);
 		if (offset) {
 			if (resource_type(res) == IORESOURCE_IO)