int __siox_driver_register()

in siox-core.c [882:905]

• 19 lines of code
• 6 McCabe index (conditional complexity)

int __siox_driver_register(struct siox_driver *sdriver, struct module *owner)
{
	int ret;

	if (unlikely(!siox_is_registered))
		return -EPROBE_DEFER;

	if (!sdriver->probe ||
	    (!sdriver->set_data && !sdriver->get_data)) {
		pr_err("Driver %s doesn't provide needed callbacks\n",
		       sdriver->driver.name);
		return -EINVAL;
	}

	sdriver->driver.owner = owner;
	sdriver->driver.bus = &siox_bus_type;

	ret = driver_register(&sdriver->driver);
	if (ret)
		pr_err("Failed to register siox driver %s (%d)\n",
		       sdriver->driver.name, ret);

	return ret;
}