diff options
| -rw-r--r-- | drivers/hwmon/lm85.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c index 0c61fa36c83..2ca616d7c1c 100644 --- a/drivers/hwmon/lm85.c +++ b/drivers/hwmon/lm85.c @@ -145,7 +145,12 @@ static int lm85_scaling[] = { /* .001 Volts */ #define INS_FROM_REG(n,val) SCALE((val), 192, lm85_scaling[n]) /* FAN speed is measured using 90kHz clock */ -#define FAN_TO_REG(val) (SENSORS_LIMIT( (val)<=0?0: 5400000/(val),0,65534)) +static inline u16 FAN_TO_REG(unsigned long val) +{ + if (!val) + return 0xffff; + return SENSORS_LIMIT(5400000 / val, 1, 0xfffe); +} #define FAN_FROM_REG(val) ((val)==0?-1:(val)==0xffff?0:5400000/(val)) /* Temperature is reported in .001 degC increments */ @@ -391,7 +396,7 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, int nr = to_sensor_dev_attr(attr)->index; struct i2c_client *client = to_i2c_client(dev); struct lm85_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); + unsigned long val = simple_strtoul(buf, NULL, 10); mutex_lock(&data->update_lock); data->fan_min[nr] = FAN_TO_REG(val); |