leds: ns2: Switch to device_for_each_child_node_scoped()
authorJavier Carrasco <javier.carrasco.cruz@gmail.com>
Thu, 26 Sep 2024 23:21:03 +0000 (01:21 +0200)
committerLee Jones <lee@kernel.org>
Wed, 9 Oct 2024 14:18:37 +0000 (15:18 +0100)
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 path.

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@gmail.com>
Link: https://lore.kernel.org/r/20240927-leds_device_for_each_child_node_scoped-v1-12-95c0614b38c8@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
drivers/leds/leds-ns2.c

index f3010c4..4c6f04a 100644 (file)
@@ -238,7 +238,6 @@ static int ns2_led_register(struct device *dev, struct fwnode_handle *node,
 static int ns2_led_probe(struct platform_device *pdev)
 {
        struct device *dev = &pdev->dev;
-       struct fwnode_handle *child;
        struct ns2_led *leds;
        int count;
        int ret;
@@ -251,12 +250,10 @@ static int ns2_led_probe(struct platform_device *pdev)
        if (!leds)
                return -ENOMEM;
 
-       device_for_each_child_node(dev, child) {
+       device_for_each_child_node_scoped(dev, child) {
                ret = ns2_led_register(dev, child, leds++);
-               if (ret) {
-                       fwnode_handle_put(child);
+               if (ret)
                        return ret;
-               }
        }
 
        return 0;