pci_bus_add_resource
pci_bus_add_resource(zdev->zbus->bus, zdev->bars[i].res);
pci_bus_add_resource(dev->bus, res);
pci_bus_add_resource(bus, res);
pci_bus_add_resource(child, res);
void pci_bus_add_resource(struct pci_bus *bus, struct resource *res);