pinctrl: k210: Use scope based of_node_put() cleanups

Use scope based of_node_put() cleanup to simplify code.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/20240504-pinctrl-cleanup-v2-19-26c5f2dc1181@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Author: MrVan

drivers/pinctrl/pinctrl-k210.c

@@ -849,7 +849,6 @@ static int k210_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
 				       unsigned int *num_maps)
 {
 	unsigned int reserved_maps;
-	struct device_node *np;
 	int ret;
 
 	reserved_maps = 0;
@@ -861,13 +860,11 @@ static int k210_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
 	if (ret < 0)
 		goto err;
 
-	for_each_available_child_of_node(np_config, np) {
+	for_each_available_child_of_node_scoped(np_config, np) {
 		ret = k210_pinctrl_dt_subnode_to_map(pctldev, np, map,
 						     &reserved_maps, num_maps);
-		if (ret < 0) {
-			of_node_put(np);
+		if (ret < 0)
 			goto err;
-		}
 	}
 	return 0;