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PCI: add default busn_res for pci_scan_bus()

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also do not need to shrink busn_res.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Yinghai Lu 2012-05-17 18:51:12 -07:00 committed by Bjorn Helgaas
parent 67cdc82728
commit 857c3b668a
1 changed files with 4 additions and 2 deletions
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6
drivers/pci/probe.c
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@ -1836,9 +1836,10 @@ struct pci_bus * __devinit pci_scan_bus_parented(struct device *parent,
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 @@ struct pci_bus * __devinit pci_scan_bus(int bus, struct pci_ops *ops,
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);