phy: ti: j721e-wiz: 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: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240826-phy-of-node-scope-v1-11-5b4d82582644@linaro.orgSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/phy/ti/phy-j721e-wiz.c

@@ -1404,7 +1404,7 @@ MODULE_DEVICE_TABLE(of, wiz_id_table);
 
 static int wiz_get_lane_phy_types(struct device *dev, struct wiz *wiz)
 {
-	struct device_node *serdes, *subnode;
+	struct device_node *serdes;
 
 	serdes = of_get_child_by_name(dev->of_node, "serdes");
 	if (!serdes) {
@@ -1412,7 +1412,7 @@ static int wiz_get_lane_phy_types(struct device *dev, struct wiz *wiz)
 		return -EINVAL;
 	}
 
-	for_each_child_of_node(serdes, subnode) {
+	for_each_child_of_node_scoped(serdes, subnode) {
 		u32 reg, num_lanes = 1, phy_type = PHY_NONE;
 		int ret, i;
 
@@ -1422,7 +1422,6 @@ static int wiz_get_lane_phy_types(struct device *dev, struct wiz *wiz)
 
 		ret = of_property_read_u32(subnode, "reg", &reg);
 		if (ret) {
-			of_node_put(subnode);
 			dev_err(dev,
 				"%s: Reading \"reg\" from \"%s\" failed: %d\n",
 				__func__, subnode->name, ret);