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path: root/drivers/hwmon/adm1029.c
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Diffstat (limited to 'drivers/hwmon/adm1029.c')
-rw-r--r--drivers/hwmon/adm1029.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/hwmon/adm1029.c b/drivers/hwmon/adm1029.c
index 092f16ad774f..f9f4f1f4a4c7 100644
--- a/drivers/hwmon/adm1029.c
+++ b/drivers/hwmon/adm1029.c
@@ -171,6 +171,7 @@ show_temp(struct device *dev, struct device_attribute *devattr, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adm1029_data *data = adm1029_update_device(dev);
+
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
}
@@ -180,6 +181,7 @@ show_fan(struct device *dev, struct device_attribute *devattr, char *buf)
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adm1029_data *data = adm1029_update_device(dev);
u16 val;
+
if (data->fan[attr->index] == 0
|| (data->fan_div[attr->index] & 0xC0) == 0
|| data->fan[attr->index] == 255) {
@@ -196,6 +198,7 @@ show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adm1029_data *data = adm1029_update_device(dev);
+
if ((data->fan_div[attr->index] & 0xC0) == 0)
return sprintf(buf, "0\n");
return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[attr->index]));
@@ -210,6 +213,7 @@ static ssize_t set_fan_div(struct device *dev,
u8 reg;
long val;
int ret = kstrtol(buf, 10, &val);
+
if (ret < 0)
return ret;