leds: lm36274: don't iterate through children since there is only one

	char label[LED_MAX_NAME_SIZE];

	struct device *dev = &chip->pdev->dev;

	const char *name;

	int child_cnt;

	int ret = -EINVAL;

	int ret;

	/* There should only be 1 node */

	child_cnt = device_get_child_node_count(dev);

	if (child_cnt != 1)

	if (device_get_child_node_count(dev) != 1)

		return -EINVAL;

	device_for_each_child_node(dev, child) {

	child = device_get_next_child_node(dev, NULL);

	ret = fwnode_property_read_string(child, "label", &name);

	if (ret)

			snprintf(label, sizeof(label), "%s::",

				 chip->pdev->name);

		snprintf(label, sizeof(label), "%s::", chip->pdev->name);

	else

			snprintf(label, sizeof(label), "%s:%s",

				 chip->pdev->name, name);

		snprintf(label, sizeof(label), "%s:%s", chip->pdev->name, name);

	chip->num_leds = fwnode_property_count_u32(child, "led-sources");

	if (chip->num_leds <= 0)

		return -ENODEV;

	ret = fwnode_property_read_u32_array(child, "led-sources",

						     chip->led_sources,

						     chip->num_leds);

					     chip->led_sources, chip->num_leds);

	if (ret) {

		dev_err(dev, "led-sources property missing\n");

		return ret;

	fwnode_property_read_string(child, "linux,default-trigger",

				    &chip->led_dev.default_trigger);

	}

	fwnode_handle_put(child);

	chip->lmu_data.regmap = chip->regmap;

	chip->lmu_data.max_brightness = MAX_BRIGHTNESS_11BIT;