This change should be part of 
89a74ecccd1f78e51faf6287e5c0e93a92ac096e
Origin description:
PCI: add pci_bus_for_each_resource(), remove direct bus->resource[] refs
No functional change; this converts loops that iterate from 0 to
PCI_BUS_NUM_RESOURCES through pci_bus resource[] table to use the
pci_bus_for_each_resource() iterator instead.
This doesn't change the way resources are stored; it merely removes
dependencies on the fact that they're in a table.
Signed-off-by: Michal Simek <monstr@monstr.eu>
 
        struct pci_dev *dev = bus->self;
 
-       for (i = 0; i < PCI_BUS_NUM_RESOURCES; ++i) {
+       pci_bus_for_each_resource(bus, res, i) {
                res = bus->resource[i];
                if (!res)
                        continue;
        pr_debug("PCI: Allocating bus resources for %04x:%02x...\n",
                 pci_domain_nr(bus), bus->number);
 
-       for (i = 0; i < PCI_BUS_NUM_RESOURCES; ++i) {
+       pci_bus_for_each_resource(bus, res, i) {
                res = bus->resource[i];
                if (!res || !res->flags
                    || res->start > res->end || res->parent)