mtd: rawnand: stm32_fmc2: 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 <[email protected]>
Signed-off-by: Miquel Raynal <[email protected]>
Link: https://lore.kernel.org/linux-mtd/[email protected]

Author: Jinjie Ruan

drivers/mtd/nand/raw/stm32_fmc2_nand.c

@@ -1851,7 +1851,6 @@ static int stm32_fmc2_nfc_parse_child(struct stm32_fmc2_nfc *nfc,
 static int stm32_fmc2_nfc_parse_dt(struct stm32_fmc2_nfc *nfc)
 {
 	struct device_node *dn = nfc->dev->of_node;
-	struct device_node *child;
 	int nchips = of_get_child_count(dn);
 	int ret = 0;
 
@@ -1865,12 +1864,10 @@ static int stm32_fmc2_nfc_parse_dt(struct stm32_fmc2_nfc *nfc)
 		return -EINVAL;
 	}
 
-	for_each_child_of_node(dn, child) {
+	for_each_child_of_node_scoped(dn, child) {
 		ret = stm32_fmc2_nfc_parse_child(nfc, child);
-		if (ret < 0) {
-			of_node_put(child);
+		if (ret < 0)
 			return ret;
-		}
 	}
 
 	return ret;