static int __init tc_init()

in tc.c [151:206]

• 48 lines of code
• 8 McCabe index (conditional complexity)

static int __init tc_init(void)
{
	/* Initialize the TURBOchannel bus */
	if (tc_bus_get_info(&tc_bus))
		goto out_err;

	INIT_LIST_HEAD(&tc_bus.devices);
	dev_set_name(&tc_bus.dev, "tc");
	if (device_register(&tc_bus.dev))
		goto out_err_device;

	if (tc_bus.info.slot_size) {
		unsigned int tc_clock = tc_get_speed(&tc_bus) / 100000;

		pr_info("tc: TURBOchannel rev. %d at %d.%d MHz "
			"(with%s parity)\n", tc_bus.info.revision,
			tc_clock / 10, tc_clock % 10,
			tc_bus.info.parity ? "" : "out");

		tc_bus.resource[0].start = tc_bus.slot_base;
		tc_bus.resource[0].end = tc_bus.slot_base +
					 (tc_bus.info.slot_size << 20) *
					 tc_bus.num_tcslots - 1;
		tc_bus.resource[0].name = tc_bus.name;
		tc_bus.resource[0].flags = IORESOURCE_MEM;
		if (request_resource(&iomem_resource,
				     &tc_bus.resource[0]) < 0) {
			pr_err("tc: Cannot reserve resource\n");
			goto out_err_device;
		}
		if (tc_bus.ext_slot_size) {
			tc_bus.resource[1].start = tc_bus.ext_slot_base;
			tc_bus.resource[1].end = tc_bus.ext_slot_base +
						 tc_bus.ext_slot_size *
						 tc_bus.num_tcslots - 1;
			tc_bus.resource[1].name = tc_bus.name;
			tc_bus.resource[1].flags = IORESOURCE_MEM;
			if (request_resource(&iomem_resource,
					     &tc_bus.resource[1]) < 0) {
				pr_err("tc: Cannot reserve resource\n");
				goto out_err_resource;
			}
		}

		tc_bus_add_devices(&tc_bus);
	}

	return 0;

out_err_resource:
	release_resource(&tc_bus.resource[0]);
out_err_device:
	put_device(&tc_bus.dev);
out_err:
	return 0;
}