Input: raspberrypi-ts - use cleanup facility for device_node

Use the '__free(device_node)' macro to automatically free the device
node, removing the need for explicit calls to 'of_node_put()' to
decrement its refcount.

Signed-off-by: Javier Carrasco <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>

Author: javiercarrascocruz

drivers/input/touchscreen/raspberrypi-ts.c

@@ -122,20 +122,18 @@ static int rpi_ts_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct device_node *np = dev->of_node;
 	struct input_dev *input;
-	struct device_node *fw_node;
 	struct rpi_firmware *fw;
 	struct rpi_ts *ts;
 	u32 touchbuf;
 	int error;
 
-	fw_node = of_get_parent(np);
+	struct device_node *fw_node __free(device_node) = of_get_parent(np);
 	if (!fw_node) {
 		dev_err(dev, "Missing firmware node\n");
 		return -ENOENT;
 	}
 
 	fw = devm_rpi_firmware_get(&pdev->dev, fw_node);
-	of_node_put(fw_node);
 	if (!fw)
 		return -EPROBE_DEFER;