struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct i2c_client *client = to_i2c_client(indio_dev->dev.parent);
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
- u32 rate;
+ s32 rate;
rate = i2c_smbus_read_byte_data(client, this_attr->address);
if (rate < 0)
- return -EINVAL;
+ return rate;
rate = (rate & RATE_BITMASK) >> RATE_OFFSET;
return sprintf(buf, "%s\n", regval_to_samp_freq[rate]);
}