diff options
| -rw-r--r-- | drivers/leds/trigger/ledtrig-gpio.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/leds/trigger/ledtrig-gpio.c b/drivers/leds/trigger/ledtrig-gpio.c index d91ae7fde3cf..8a30f9228186 100644 --- a/drivers/leds/trigger/ledtrig-gpio.c +++ b/drivers/leds/trigger/ledtrig-gpio.c @@ -53,14 +53,12 @@ static ssize_t gpio_trig_brightness_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t n) { struct gpio_trig_data *gpio_data = led_trigger_get_drvdata(dev); - unsigned desired_brightness; + u8 desired_brightness; int ret; - ret = sscanf(buf, "%u", &desired_brightness); - if (ret < 1 || desired_brightness > 255) { - dev_err(dev, "invalid value\n"); - return -EINVAL; - } + ret = kstrtou8(buf, 10, &desired_brightness); + if (ret) + return ret; gpio_data->desired_brightness = desired_brightness; |