/* acpiphp_glue_init - initializes all PCI hotplug - ACPI glue data structures  */
int __init acpiphp_glue_init(void)
/* acpiphp_glue_init - initializes all PCI hotplug - ACPI glue data structures  */
int __init acpiphp_glue_init(void)
{
	int num = 0;
	acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
			ACPI_UINT32_MAX, find_root_bridges, NULL, &num, NULL);
	if (num <= 0)
		return -1;
	else
		acpi_pci_register_driver(&acpi_pci_hp_driver);
	return 0;
}