acer-wmi: fix regression in backlight detection

[sfrench/cifs-2.6.git] / drivers / leds / led-class.c

diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 6c4a326176d7be57d724d994a7ff5e971f50dc93..52f82e3ea13aae5b04a603938fba9dbbd0654712 100644 (file)
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -91,9 +91,29 @@ void led_classdev_resume(struct led_classdev *led_cdev)
 }
 EXPORT_SYMBOL_GPL(led_classdev_resume);
 
+static int led_suspend(struct device *dev, pm_message_t state)
+{
+       struct led_classdev *led_cdev = dev_get_drvdata(dev);
+
+       if (led_cdev->flags & LED_CORE_SUSPENDRESUME)
+               led_classdev_suspend(led_cdev);
+
+       return 0;
+}
+
+static int led_resume(struct device *dev)
+{
+       struct led_classdev *led_cdev = dev_get_drvdata(dev);
+
+       if (led_cdev->flags & LED_CORE_SUSPENDRESUME)
+               led_classdev_resume(led_cdev);
+
+       return 0;
+}
+
 /**
  * led_classdev_register - register a new object of led_classdev class.
- * @dev: The device to register.
+ * @parent: The device to register.
  * @led_cdev: the led_classdev structure for this device.
  */
 int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)
@@ -174,6 +194,8 @@ static int __init leds_init(void)
        leds_class = class_create(THIS_MODULE, "leds");
        if (IS_ERR(leds_class))
                return PTR_ERR(leds_class);
+       leds_class->suspend = led_suspend;
+       leds_class->resume = led_resume;
        return 0;
 }