mtd: rawnand: sunxi: 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>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20240826094328.2991664-11-ruanjinjie@huawei.com

drivers/mtd/nand/raw/sunxi_nand.c

@@ -2025,13 +2025,11 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc,
 static int sunxi_nand_chips_init(struct device *dev, struct sunxi_nfc *nfc)
 {
 	struct device_node *np = dev->of_node;
-	struct device_node *nand_np;
 	int ret;
 
-	for_each_child_of_node(np, nand_np) {
+	for_each_child_of_node_scoped(np, nand_np) {
 		ret = sunxi_nand_chip_init(dev, nfc, nand_np);
 		if (ret) {
-			of_node_put(nand_np);
 			sunxi_nand_chips_cleanup(nfc);
 			return ret;
 		}