mutex_unlock(&indio_dev->mlock);
        return len;
 }
+
 static ssize_t ad7152_start_offset_calib(struct device *dev,
                                         struct device_attribute *attr,
                                         const char *buf,
        return ad7152_start_calib(dev, attr, buf, len,
                                  AD7152_CONF_MODE_OFFS_CAL);
 }
+
 static ssize_t ad7152_start_gain_calib(struct device *dev,
                                       struct device_attribute *attr,
                                       const char *buf,
        mutex_unlock(&indio_dev->mlock);
        return ret;
 }
+
 static int ad7152_read_raw(struct iio_dev *indio_dev,
                           struct iio_chan_spec const *chan,
                           int *val, int *val2,
                BIT(IIO_CHAN_INFO_SCALE),
        }
 };
+
 /*
  * device probe and remove
  */