hwmon: (aspeed-g6-pwm-tacho): Simplify with scoped for each OF child loop

Use scoped for_each_child_of_node_scoped() when iterating over device
nodes to make code a bit simpler.
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Message-ID: <20240822062956.3490387-2-ruanjinjie@huawei.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/aspeed-g6-pwm-tach.c

@@ -456,7 +456,6 @@ static int aspeed_pwm_tach_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev, *hwmon;
 	int ret;
-	struct device_node *child;
 	struct aspeed_pwm_tach_data *priv;
 	struct pwm_chip *chip;
 
@@ -498,10 +497,9 @@ static int aspeed_pwm_tach_probe(struct platform_device *pdev)
 	if (ret)
 		return dev_err_probe(dev, ret, "Failed to add PWM chip\n");
 
-	for_each_child_of_node(dev->of_node, child) {
+	for_each_child_of_node_scoped(dev->of_node, child) {
 		ret = aspeed_create_fan_monitor(dev, child, priv);
 		if (ret) {
-			of_node_put(child);
 			dev_warn(dev, "Failed to create fan %d", ret);
 			return 0;
 		}