leds: Don't allow brightness values greater than max_brightness

Since commit 4d71a4a12b13 ("leds: Add support for setting brightness in
a synchronous way") the value passed to brightness_set() is no longer
limited to max_brightness and can be different from the internally saved
brightness value.

Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/leds/leds.h b/drivers/leds/leds.h
index 2348dbda5269..79efe57c7405 100644
--- a/drivers/leds/leds.h
+++ b/drivers/leds/leds.h
@@ -20,7 +20,8 @@
 static inline void led_set_brightness_async(struct led_classdev *led_cdev,
                                         enum led_brightness value)
 {
-        led_cdev->brightness = min(value, led_cdev->max_brightness);
+        value = min(value, led_cdev->max_brightness);
+        led_cdev->brightness = value;
 
         if (!(led_cdev->flags & LED_SUSPENDED))
                 led_cdev->brightness_set(led_cdev, value);