vrm is an u8, so the written value needs to be limited to [0, 255]. Signed-off-by: Axel Lin <axel.lin@xxxxxxxxxx> --- drivers/hwmon/lm87.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/hwmon/lm87.c b/drivers/hwmon/lm87.c index ba1d83d..a5e2958 100644 --- a/drivers/hwmon/lm87.c +++ b/drivers/hwmon/lm87.c @@ -617,6 +617,10 @@ static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, err = kstrtoul(buf, 10, &val); if (err) return err; + + if (val > 255) + return -EINVAL; + data->vrm = val; return count; } -- 1.9.1 _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
