add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/leds/led-class.c
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@@ -236,14 +236,17 @@
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 	led_dev = class_find_device_by_of_node(leds_class, led_node);
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 	of_node_put(led_node);
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+	put_device(led_dev);
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 	if (!led_dev)
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 		return ERR_PTR(-EPROBE_DEFER);
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 	led_cdev = dev_get_drvdata(led_dev);
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-	if (!try_module_get(led_cdev->dev->parent->driver->owner))
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+	if (!try_module_get(led_cdev->dev->parent->driver->owner)) {
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+		put_device(led_cdev->dev);
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 		return ERR_PTR(-ENODEV);
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+	}
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 	return led_cdev;
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 }
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@@ -256,6 +259,7 @@
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 void led_put(struct led_classdev *led_cdev)
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 {
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 	module_put(led_cdev->dev->parent->driver->owner);
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+	put_device(led_cdev->dev);
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 }
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 EXPORT_SYMBOL_GPL(led_put);
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