static int add_dport()

in core/bus.c [392:408]

• 15 lines of code
• 3 McCabe index (conditional complexity)

static int add_dport(struct cxl_port *port, struct cxl_dport *new)
{
	struct cxl_dport *dup;

	device_lock(&port->dev);
	dup = find_dport(port, new->port_id);
	if (dup)
		dev_err(&port->dev,
			"unable to add dport%d-%s non-unique port id (%s)\n",
			new->port_id, dev_name(new->dport),
			dev_name(dup->dport));
	else
		list_add_tail(&new->list, &port->dports);
	device_unlock(&port->dev);

	return dup ? -EEXIST : 0;
}