static int __init pnpbios_init()

in pnpbios/core.c [505:556]

• 37 lines of code
• 10 McCabe index (conditional complexity)

static int __init pnpbios_init(void)
{
	int ret;

	if (pnpbios_disabled || dmi_check_system(pnpbios_dmi_table) ||
	    arch_pnpbios_disabled()) {
		printk(KERN_INFO "PnPBIOS: Disabled\n");
		return -ENODEV;
	}

#ifdef CONFIG_PNPACPI
	if (!acpi_disabled && !pnpacpi_disabled) {
		pnpbios_disabled = 1;
		printk(KERN_INFO "PnPBIOS: Disabled by ACPI PNP\n");
		return -ENODEV;
	}
#endif				/* CONFIG_ACPI */

	/* scan the system for pnpbios support */
	if (!pnpbios_probe_system())
		return -ENODEV;

	/* make preparations for bios calls */
	pnpbios_calls_init(pnp_bios_install);

	/* read the node info */
	ret = pnp_bios_dev_node_info(&node_info);
	if (ret) {
		printk(KERN_ERR
		       "PnPBIOS: Unable to get node info.  Aborting.\n");
		return ret;
	}

	/* register with the pnp layer */
	ret = pnp_register_protocol(&pnpbios_protocol);
	if (ret) {
		printk(KERN_ERR
		       "PnPBIOS: Unable to register driver.  Aborting.\n");
		return ret;
	}

	/* start the proc interface */
	ret = pnpbios_proc_init();
	if (ret)
		printk(KERN_ERR "PnPBIOS: Failed to create proc interface.\n");

	/* scan for pnpbios devices */
	build_devlist();

	pnp_platform_devices = 1;
	return 0;
}