PCI: add default busn_res for pci_scan_bus()
also do not need to shrink busn_res.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 68e75cb..9f68b9d 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1836,9 +1836,10 @@
pci_add_resource(&resources, &ioport_resource);
pci_add_resource(&resources, &iomem_resource);
+ pci_add_resource(&resources, &busn_resource);
b = pci_create_root_bus(parent, bus, ops, sysdata, &resources);
if (b)
- b->busn_res.end = pci_scan_child_bus(b);
+ pci_scan_child_bus(b);
else
pci_free_resource_list(&resources);
return b;
@@ -1853,9 +1854,10 @@
pci_add_resource(&resources, &ioport_resource);
pci_add_resource(&resources, &iomem_resource);
+ pci_add_resource(&resources, &busn_resource);
b = pci_create_root_bus(NULL, bus, ops, sysdata, &resources);
if (b) {
- b->busn_res.end = pci_scan_child_bus(b);
+ pci_scan_child_bus(b);
pci_bus_add_devices(b);
} else {
pci_free_resource_list(&resources);