hwmon: Allow writing of negative trigger temperatures

- replace differing temperature variable types by long
- use strtol() instead of strtoul() for conversion

Signed-off-by: Christian Hohnstaedt <chohnstaedt@innominate.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/hwmon/lm93.c b/drivers/hwmon/lm93.c
index d84f8bf6f284..86c6c6ea0745 100644
--- a/drivers/hwmon/lm93.c
+++ b/drivers/hwmon/lm93.c
@@ -413,7 +413,7 @@ static int LM93_TEMP_FROM_REG(u8 reg)
 
 /* TEMP: 1/1000 degrees C (-128C to +127C)
    REG: 1C/bit, two's complement */
-static u8 LM93_TEMP_TO_REG(int temp)
+static u8 LM93_TEMP_TO_REG(long temp)
 {
         int ntemp = SENSORS_LIMIT(temp, LM93_TEMP_MIN, LM93_TEMP_MAX);
         ntemp += (ntemp<0 ? -500 : 500);
@@ -1268,7 +1268,7 @@ static ssize_t store_temp_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 lm93_data *data = i2c_get_clientdata(client);
-        u32 val = simple_strtoul(buf, NULL, 10);
+        long val = simple_strtol(buf, NULL, 10);
 
         mutex_lock(&data->update_lock);
         data->temp_lim[nr].min = LM93_TEMP_TO_REG(val);
@@ -1298,7 +1298,7 @@ static ssize_t store_temp_max(struct device *dev, struct device_attribute *attr,
         int nr = (to_sensor_dev_attr(attr))->index;
         struct i2c_client *client = to_i2c_client(dev);
         struct lm93_data *data = i2c_get_clientdata(client);
-        u32 val = simple_strtoul(buf, NULL, 10);
+        long val = simple_strtol(buf, NULL, 10);
 
         mutex_lock(&data->update_lock);
         data->temp_lim[nr].max = LM93_TEMP_TO_REG(val);
@@ -1329,7 +1329,7 @@ static ssize_t store_temp_auto_base(struct device *dev,
         int nr = (to_sensor_dev_attr(attr))->index;
         struct i2c_client *client = to_i2c_client(dev);
         struct lm93_data *data = i2c_get_clientdata(client);
-        u32 val = simple_strtoul(buf, NULL, 10);
+        long val = simple_strtol(buf, NULL, 10);
 
         mutex_lock(&data->update_lock);
         data->block10.base[nr] = LM93_TEMP_TO_REG(val);
@@ -1360,7 +1360,7 @@ static ssize_t store_temp_auto_boost(struct device *dev,
         int nr = (to_sensor_dev_attr(attr))->index;
         struct i2c_client *client = to_i2c_client(dev);
         struct lm93_data *data = i2c_get_clientdata(client);
-        u32 val = simple_strtoul(buf, NULL, 10);
+        long val = simple_strtol(buf, NULL, 10);
 
         mutex_lock(&data->update_lock);
         data->boost[nr] = LM93_TEMP_TO_REG(val);