Input: adc-joystick - use device_for_each_child_node_scoped()

Switch to the _scoped() version introduced in commit 365130fd
("device property: Introduce device_for_each_child_node_scoped()")
to remove the need for manual calling of fwnode_handle_put() in the
paths where the code exits the loop early.

In this case the err_fwnode_put label was no longer necessary and the
error code is returned directly.
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://lore.kernel.org/r/20240412-input_device_for_each_child_node_scoped-v1-6-dbad1bc7ea84@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/joystick/adc-joystick.c

@@ -132,7 +132,6 @@ static void adc_joystick_cleanup(void *data)
 static int adc_joystick_set_axes(struct device *dev, struct adc_joystick *joy)
 {
 	struct adc_joystick_axis *axes = joy->axes;
-	struct fwnode_handle *child;
 	s32 range[2], fuzz, flat;
 	unsigned int num_axes;
 	int error, i;
@@ -149,31 +148,30 @@ static int adc_joystick_set_axes(struct device *dev, struct adc_joystick *joy)
 		return -EINVAL;
 	}
 
-	device_for_each_child_node(dev, child) {
+	device_for_each_child_node_scoped(dev, child) {
 		error = fwnode_property_read_u32(child, "reg", &i);
 		if (error) {
 			dev_err(dev, "reg invalid or missing\n");
-			goto err_fwnode_put;
+			return error;
 		}
 
 		if (i >= num_axes) {
-			error = -EINVAL;
 			dev_err(dev, "No matching axis for reg %d\n", i);
-			goto err_fwnode_put;
+			return -EINVAL;
 		}
 
 		error = fwnode_property_read_u32(child, "linux,code",
 						 &axes[i].code);
 		if (error) {
 			dev_err(dev, "linux,code invalid or missing\n");
-			goto err_fwnode_put;
+			return error;
 		}
 
 		error = fwnode_property_read_u32_array(child, "abs-range",
 						       range, 2);
 		if (error) {
 			dev_err(dev, "abs-range invalid or missing\n");
-			goto err_fwnode_put;
+			return error;
 		}
 
 		if (range[0] > range[1]) {
@@ -190,10 +188,6 @@ static int adc_joystick_set_axes(struct device *dev, struct adc_joystick *joy)
 	}
 
 	return 0;
-
-err_fwnode_put:
-	fwnode_handle_put(child);
-	return error;
 }