linux-kernel - [PATCH 05/18] leds: cr0014114: switch to device_for_each_child_node

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Message-Id: <20240927-leds_device_for_each_child_node_scoped-v1-5-95c0614b38c8@gmail.com>
Date: Fri, 27 Sep 2024 01:20:56 +0200
From: Javier Carrasco <javier.carrasco.cruz@...il.com>
To: Pavel Machek <pavel@....cz>, Lee Jones <lee@...nel.org>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
 Gene Chen <gene_chen@...htek.com>, 
 Jacek Anaszewski <jacek.anaszewski@...il.com>, 
 Bartosz Golaszewski <brgl@...ev.pl>, Chen-Yu Tsai <wens@...e.org>, 
 Jernej Skrabec <jernej.skrabec@...il.com>, 
 Samuel Holland <samuel@...lland.org>, 
 Jonathan Cameron <Jonathan.Cameron@...wei.com>
Cc: linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org, 
 linux-sunxi@...ts.linux.dev, 
 Javier Carrasco <javier.carrasco.cruz@...il.com>
Subject: [PATCH 05/18] leds: cr0014114: 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 <javier.carrasco.cruz@...il.com>
---
 drivers/leds/leds-cr0014114.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/leds/leds-cr0014114.c b/drivers/leds/leds-cr0014114.c
index c9914fc51f20..7e51c374edd4 100644
--- a/drivers/leds/leds-cr0014114.c
+++ b/drivers/leds/leds-cr0014114.c
@@ -181,11 +181,10 @@ static int cr0014114_probe_dt(struct cr0014114 *priv)
 {
 	size_t			i = 0;
 	struct cr0014114_led	*led;
-	struct fwnode_handle	*child;
 	struct led_init_data	init_data = {};
 	int			ret;
 
-	device_for_each_child_node(priv->dev, child) {
+	device_for_each_child_node_scoped(priv->dev, child) {
 		led = &priv->leds[i];
 
 		led->priv			  = priv;
@@ -201,7 +200,6 @@ static int cr0014114_probe_dt(struct cr0014114 *priv)
 		if (ret) {
 			dev_err(priv->dev,
 				"failed to register LED device, err %d", ret);
-			fwnode_handle_put(child);
 			return ret;
 		}
 

-- 
2.43.0