From ac2b6ce67275a4c777622fda623ebbda320f47da Mon Sep 17 00:00:00 2001 From: Javier Carrasco Date: Sat, 19 Oct 2024 20:59:02 -0700 Subject: [PATCH] Input: cap11xx - switch to for_each_child_of_node_scoped Use the scoped variant of the macro to simplify the code and error handling. This makes the error handling more robust by ensuring that the child node is always freed. Signed-off-by: Javier Carrasco Link: https://lore.kernel.org/r/20241010-input_automate_of_node_put-v1-1-ebc62138fbf8@gmail.com Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/cap11xx.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/input/keyboard/cap11xx.c b/drivers/input/keyboard/cap11xx.c index b21ef9d6ff9d..0c17cbaa3d27 100644 --- a/drivers/input/keyboard/cap11xx.c +++ b/drivers/input/keyboard/cap11xx.c @@ -416,7 +416,7 @@ static int cap11xx_led_set(struct led_classdev *cdev, static int cap11xx_init_leds(struct device *dev, struct cap11xx_priv *priv, int num_leds) { - struct device_node *node = dev->of_node, *child; + struct device_node *node = dev->of_node; struct cap11xx_led *led; int cnt = of_get_child_count(node); int error; @@ -445,7 +445,7 @@ static int cap11xx_init_leds(struct device *dev, if (error) return error; - for_each_child_of_node(node, child) { + for_each_child_of_node_scoped(node, child) { u32 reg; led->cdev.name = @@ -458,19 +458,15 @@ static int cap11xx_init_leds(struct device *dev, led->cdev.brightness = LED_OFF; error = of_property_read_u32(child, "reg", ®); - if (error != 0 || reg >= num_leds) { - of_node_put(child); + if (error != 0 || reg >= num_leds) return -EINVAL; - } led->reg = reg; led->priv = priv; error = devm_led_classdev_register(dev, &led->cdev); - if (error) { - of_node_put(child); + if (error) return error; - } priv->num_leds++; led++; -- 2.20.1