mtd: rawnand: renesas: Use for_each_child_of_node_scoped()

Avoids the need for manual cleanup of_node_put() in early exits
from the loop.
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20240826094328.2991664-9-ruanjinjie@huawei.com

drivers/mtd/nand/raw/renesas-nand-controller.c

@@ -1297,23 +1297,17 @@ static void rnandc_chips_cleanup(struct rnandc *rnandc)
 
 static int rnandc_chips_init(struct rnandc *rnandc)
 {
-	struct device_node *np;
 	int ret;
 
-	for_each_child_of_node(rnandc->dev->of_node, np) {
+	for_each_child_of_node_scoped(rnandc->dev->of_node, np) {
 		ret = rnandc_chip_init(rnandc, np);
 		if (ret) {
-			of_node_put(np);
-			goto cleanup_chips;
+			rnandc_chips_cleanup(rnandc);
+			return ret;
 		}
 	}
 
 	return 0;
-
-cleanup_chips:
-	rnandc_chips_cleanup(rnandc);
-
-	return ret;
 }
 
 static int rnandc_probe(struct platform_device *pdev)