Input: qt1050 - 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 label was no longer necessary and EINVAL 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-v1-2-dbad1bc7ea84@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/keyboard/qt1050.c

@@ -346,35 +346,34 @@ static int qt1050_apply_fw_data(struct qt1050_priv *ts)
 static int qt1050_parse_fw(struct qt1050_priv *ts)
 {
 	struct device *dev = &ts->client->dev;
-	struct fwnode_handle *child;
 	int nbuttons;
 
 	nbuttons = device_get_child_node_count(dev);
 	if (nbuttons == 0 || nbuttons > QT1050_MAX_KEYS)
 		return -ENODEV;
 
-	device_for_each_child_node(dev, child) {
+	device_for_each_child_node_scoped(dev, child) {
 		struct qt1050_key button;
 
 		/* Required properties */
 		if (fwnode_property_read_u32(child, "linux,code",
 					     &button.keycode)) {
 			dev_err(dev, "Button without keycode\n");
-			goto err;
+			return -EINVAL;
 		}
 		if (button.keycode >= KEY_MAX) {
 			dev_err(dev, "Invalid keycode 0x%x\n",
 				button.keycode);
-			goto err;
+			return -EINVAL;
 		}
 
 		if (fwnode_property_read_u32(child, "reg",
 					     &button.num)) {
 			dev_err(dev, "Button without pad number\n");
-			goto err;
+			return -EINVAL;
 		}
 		if (button.num < 0 || button.num > QT1050_MAX_KEYS - 1)
-			goto err;
+			return -EINVAL;
 
 		ts->reg_keys |= BIT(button.num);
 
@@ -424,10 +423,6 @@ static int qt1050_parse_fw(struct qt1050_priv *ts)
 	}
 
 	return 0;
-
-err:
-	fwnode_handle_put(child);
-	return -EINVAL;
 }
 
 static int qt1050_probe(struct i2c_client *client)