int cxl_add_dport()

in core/bus.c [420:453]

• 28 lines of code
• 5 McCabe index (conditional complexity)

int cxl_add_dport(struct cxl_port *port, struct device *dport_dev, int port_id,
		  resource_size_t component_reg_phys)
{
	char link_name[CXL_TARGET_STRLEN];
	struct cxl_dport *dport;
	int rc;

	if (snprintf(link_name, CXL_TARGET_STRLEN, "dport%d", port_id) >=
	    CXL_TARGET_STRLEN)
		return -EINVAL;

	dport = kzalloc(sizeof(*dport), GFP_KERNEL);
	if (!dport)
		return -ENOMEM;

	INIT_LIST_HEAD(&dport->list);
	dport->dport = get_device(dport_dev);
	dport->port_id = port_id;
	dport->component_reg_phys = component_reg_phys;
	dport->port = port;

	rc = add_dport(port, dport);
	if (rc)
		goto err;

	rc = sysfs_create_link(&port->dev.kobj, &dport_dev->kobj, link_name);
	if (rc)
		goto err;

	return 0;
err:
	cxl_dport_release(dport);
	return rc;
}