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authorGabriele Mazzotta <gabriele.mzt@gmail.com>2014-12-23 10:59:23 -0800
committerBryan Wu <cooloney@gmail.com>2015-01-14 10:40:19 -0800
commit56d06fdee534124f79b51ff92232373b783cddc2 (patch)
tree126c70b1e945ab98c4458182652a556cdf094ef9 /drivers/leds
parent13b695f3c41bc691028f255eae2f8e1938377565 (diff)
downloadlinux-56d06fdee534124f79b51ff92232373b783cddc2.tar.bz2
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>
Diffstat (limited to 'drivers/leds')
-rw-r--r--drivers/leds/leds.h3
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);