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 <javier.carrasco.cruz@gmail.com>
Link: https://lore.kernel.org/r/20241010-input_automate_of_node_put-v1-1-ebc62138fbf8@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/keyboard/cap11xx.c b/drivers/input/keyboard/cap11xx.c
index b21ef9d6ff9d66280b93c4ffdf3893297a2aaacb..0c17cbaa3d27aa9b23963aa329f57f61e59b2467 100644 (file)
--- 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", &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++;