int cxl_decoder_add()

in core/bus.c [524:550]

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

int cxl_decoder_add(struct cxl_decoder *cxld, int *target_map)
{
	struct cxl_port *port;
	struct device *dev;
	int rc;

	if (WARN_ON_ONCE(!cxld))
		return -EINVAL;

	if (WARN_ON_ONCE(IS_ERR(cxld)))
		return PTR_ERR(cxld);

	if (cxld->interleave_ways < 1)
		return -EINVAL;

	port = to_cxl_port(cxld->dev.parent);
	rc = decoder_populate_targets(cxld, port, target_map);
	if (rc)
		return rc;

	dev = &cxld->dev;
	rc = dev_set_name(dev, "decoder%d.%d", port->id, cxld->id);
	if (rc)
		return rc;

	return device_add(dev);
}