diff options
Diffstat (limited to 'drivers/leds/led-class.c')
| -rw-r--r-- | drivers/leds/led-class.c | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c index 5bff8439dc6..8ee92c81aec 100644 --- a/drivers/leds/led-class.c +++ b/drivers/leds/led-class.c @@ -44,23 +44,18 @@ static ssize_t led_brightness_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { struct led_classdev *led_cdev = dev_get_drvdata(dev); + unsigned long state; ssize_t ret = -EINVAL; - char *after; - unsigned long state = simple_strtoul(buf, &after, 10); - size_t count = after - buf; - if (isspace(*after)) - count++; + ret = kstrtoul(buf, 10, &state); + if (ret) + return ret; - if (count == size) { - ret = count; + if (state == LED_OFF) + led_trigger_remove(led_cdev); + led_set_brightness(led_cdev, state); - if (state == LED_OFF) - led_trigger_remove(led_cdev); - led_set_brightness(led_cdev, state); - } - - return ret; + return size; } static ssize_t led_max_brightness_show(struct device *dev, |