static int _gb_interface_activate()

in interface.c [917:974]

• 45 lines of code
• 11 McCabe index (conditional complexity)

static int _gb_interface_activate(struct gb_interface *intf,
				  enum gb_interface_type *type)
{
	int ret;

	*type = GB_INTERFACE_TYPE_UNKNOWN;

	if (intf->ejected || intf->removed)
		return -ENODEV;

	ret = gb_interface_vsys_set(intf, true);
	if (ret)
		return ret;

	ret = gb_interface_refclk_set(intf, true);
	if (ret)
		goto err_vsys_disable;

	ret = gb_interface_unipro_set(intf, true);
	if (ret)
		goto err_refclk_disable;

	ret = gb_interface_activate_operation(intf, type);
	if (ret) {
		switch (*type) {
		case GB_INTERFACE_TYPE_UNIPRO:
		case GB_INTERFACE_TYPE_GREYBUS:
			goto err_hibernate_link;
		default:
			goto err_unipro_disable;
		}
	}

	ret = gb_interface_read_dme(intf);
	if (ret)
		goto err_hibernate_link;

	ret = gb_interface_route_create(intf);
	if (ret)
		goto err_hibernate_link;

	intf->active = true;

	trace_gb_interface_activate(intf);

	return 0;

err_hibernate_link:
	gb_interface_hibernate_link(intf);
err_unipro_disable:
	gb_interface_unipro_set(intf, false);
err_refclk_disable:
	gb_interface_refclk_set(intf, false);
err_vsys_disable:
	gb_interface_vsys_set(intf, false);

	return ret;
}