leds: flash: leds-qcom-flash: Switch to device_for_each_child_node_scoped()

Switch to device_for_each_child_node_scoped() to simplify the code by
removing the need for calls to fwnode_handle_put() in the error paths.

This also prevents possible memory leaks if new error paths are added
without the required call to fwnode_handle_put().

Signed-off-by: Javier Carrasco <[email protected]>
Link: https://lore.kernel.org/r/20240927-leds_device_for_each_child_node_scoped-v1-3-95c0614b38c8@gmail.com
Signed-off-by: Lee Jones <[email protected]>

Author: javiercarrascocruz

drivers/leds/flash/leds-qcom-flash.c

@@ -812,7 +812,6 @@ static int qcom_flash_led_probe(struct platform_device *pdev)
 {
 	struct qcom_flash_data *flash_data;
 	struct qcom_flash_led *led;
-	struct fwnode_handle *child;
 	struct device *dev = &pdev->dev;
 	struct regmap *regmap;
 	struct reg_field *regs;
@@ -896,7 +895,7 @@ static int qcom_flash_led_probe(struct platform_device *pdev)
 	if (!flash_data->v4l2_flash)
 		return -ENOMEM;
 
-	device_for_each_child_node(dev, child) {
+	device_for_each_child_node_scoped(dev, child) {
 		led = devm_kzalloc(dev, sizeof(*led), GFP_KERNEL);
 		if (!led) {
 			rc = -ENOMEM;
@@ -914,7 +913,6 @@ static int qcom_flash_led_probe(struct platform_device *pdev)
 	return 0;
 
 release:
-	fwnode_handle_put(child);
 	while (flash_data->v4l2_flash[flash_data->leds_count] && flash_data->leds_count)
 		v4l2_flash_release(flash_data->v4l2_flash[flash_data->leds_count--]);
 	return rc;