hwmon: (max1668) Don't hide return value from i2c_smbus_write_byte_data

i2c_smbus_write_byte_data returns a valid error code.
Return it to the user instead of replacing it with -EIO.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>

1 files changed, 8 insertions, 6 deletions

diff --git a/drivers/hwmon/max1668.c b/drivers/hwmon/max1668.c
index 029b65e6c589..bbbe340332b9 100644
--- a/drivers/hwmon/max1668.c
+++ b/drivers/hwmon/max1668.c
@@ -216,10 +216,11 @@ static ssize_t set_temp_max(struct device *dev,
 
         mutex_lock(&data->update_lock);
         data->temp_max[index] = clamp_val(temp/1000, -128, 127);
-        if (i2c_smbus_write_byte_data(client,
+        ret = i2c_smbus_write_byte_data(client,
                                         MAX1668_REG_LIMH_WR(index),
-                                        data->temp_max[index]))
-                count = -EIO;
+                                        data->temp_max[index]);
+        if (ret < 0)
+                count = ret;
         mutex_unlock(&data->update_lock);
 
         return count;
@@ -241,10 +242,11 @@ static ssize_t set_temp_min(struct device *dev,
 
         mutex_lock(&data->update_lock);
         data->temp_min[index] = clamp_val(temp/1000, -128, 127);
-        if (i2c_smbus_write_byte_data(client,
+        ret = i2c_smbus_write_byte_data(client,
                                         MAX1668_REG_LIML_WR(index),
-                                        data->temp_min[index]))
-                count = -EIO;
+                                        data->temp_min[index]);
+        if (ret < 0)
+                count = ret;
         mutex_unlock(&data->update_lock);
 
         return count;