hwmon: (lm95241) Use more accurate limits

The lower temperature limit is -128 degrees C. The supported upper limits are 127.875 or 255.875 degrees C. Also, don't fail if a value outside the supported range is provided when setting a temperature limit. Instead, clamp the provided value to the available value range. Signed-off-by: Guenter Roeck <[email protected]>
jledet · Sep 9, 2016 · 637ab15 · 637ab15
1 parent e8172a9
commit 637ab15
Showing 1 changed file with 2 additions and 6 deletions.
diff --git a/drivers/hwmon/lm95241.c b/drivers/hwmon/lm95241.c
@@ -205,7 +205,7 @@ static ssize_t show_min(struct device *dev, struct device_attribute *attr,
 
 	return snprintf(buf, PAGE_SIZE - 1,
 			data->config & to_sensor_dev_attr(attr)->index ?
-			"-127000\n" : "0\n");
+			"-128000\n" : "0\n");
 }
 
 static ssize_t set_min(struct device *dev, struct device_attribute *attr,
@@ -216,8 +216,6 @@ static ssize_t set_min(struct device *dev, struct device_attribute *attr,
 
 	if (kstrtol(buf, 10, &val) < 0)
 		return -EINVAL;
-	if (val < -128000)
-		return -EINVAL;
 
 	mutex_lock(&data->update_lock);
 
@@ -242,7 +240,7 @@ static ssize_t show_max(struct device *dev, struct device_attribute *attr,
 
 	return snprintf(buf, PAGE_SIZE - 1,
 			data->config & to_sensor_dev_attr(attr)->index ?
-			"127000\n" : "255000\n");
+			"127875\n" : "255875\n");
 }
 
 static ssize_t set_max(struct device *dev, struct device_attribute *attr,
@@ -253,8 +251,6 @@ static ssize_t set_max(struct device *dev, struct device_attribute *attr,
 
 	if (kstrtol(buf, 10, &val) < 0)
 		return -EINVAL;
-	if (val >= 256000)
-		return -EINVAL;
 
 	mutex_lock(&data->update_lock);