diff options
| -rw-r--r-- | drivers/hwmon/ina230.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/hwmon/ina230.c b/drivers/hwmon/ina230.c index 92e2d3c927f2..5766938996ea 100644 --- a/drivers/hwmon/ina230.c +++ b/drivers/hwmon/ina230.c @@ -458,21 +458,22 @@ static s32 show_current(struct device *dev, } /* getting current readings in milli amps*/ - current_mA = be16_to_cpu(i2c_smbus_read_word_data(client, - INA230_CURRENT)); - if (current_mA < 0) { + retval = i2c_smbus_read_word_data(client, INA230_CURRENT); + if (retval < 0) { mutex_unlock(&data->mutex); - return -EINVAL; + return retval; } + current_mA = (s16) be16_to_cpu(retval); ensure_enabled_end(client); mutex_unlock(&data->mutex); if (data->pdata->shunt_polarity_inverted) - current_mA = (s16)current_mA * -1; + current_mA *= -1; - current_mA = - (current_mA * data->pdata->power_lsb) / data->pdata->divisor; + current_mA *= (s16) data->pdata->power_lsb; + if (data->pdata->divisor) + current_mA /= (s16) data->pdata->divisor; if (data->pdata->precision_multiplier) current_mA /= (s16) data->pdata->precision_multiplier; |