linux-kernel - [PATCH 2/6] input: qt1050: use device_for_each_child_node

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Message-Id: <20240412-input_device_for_each_child_node_scoped-v1-2-dbad1bc7ea84@gmail.com>
Date: Fri, 12 Apr 2024 22:57:31 +0200
From: Javier Carrasco <javier.carrasco.cruz@...il.com>
To: Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc: linux-input@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Javier Carrasco <javier.carrasco.cruz@...il.com>
Subject: [PATCH 2/6] input: qt1050: use device_for_each_child_node_scoped()

Switch to the _scoped() version introduced in commit 365130fd47af
("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@...il.com>
---
 drivers/input/keyboard/qt1050.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/input/keyboard/qt1050.c b/drivers/input/keyboard/qt1050.c
index b51dfcd76038..6ac2b9dbdb85 100644
--- a/drivers/input/keyboard/qt1050.c
+++ b/drivers/input/keyboard/qt1050.c
@@ -355,21 +355,21 @@ static int qt1050_parse_fw(struct qt1050_priv *ts)
 		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);
 
@@ -419,10 +419,6 @@ 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)

-- 
2.40.1