iio: Fix endianness issue in ak8975_read_axis()

commit 8ba42fb7b17649c9ab5b5e79d4e90370a0b4645e upstream.

i2c_smbus_read_word_data() does host endian conversion already,
no need for le16_to_cpu()

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
index 05423543f89d7896ba1a6f086b409955c35417fa..053117c02bbc9f9651e58bc863916b3d6c8e7b7c 100644 (file)
--- a/drivers/iio/magnetometer/ak8975.c
+++ b/drivers/iio/magnetometer/ak8975.c
@@ -352,8 +352,6 @@ static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val)
 {
        struct ak8975_data *data = iio_priv(indio_dev);
        struct i2c_client *client = data->client;
-       u16 meas_reg;
-       s16 raw;
        int ret;
 
        mutex_lock(&data->lock);
@@ -401,16 +399,11 @@ static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val)
                dev_err(&client->dev, "Read axis data fails\n");
                goto exit;
        }
-       meas_reg = ret;
 
        mutex_unlock(&data->lock);
 
-       /* Endian conversion of the measured values. */
-       raw = (s16) (le16_to_cpu(meas_reg));
-
        /* Clamp to valid range. */
-       raw = clamp_t(s16, raw, -4096, 4095);
-       *val = raw;
+       *val = clamp_t(s16, ret, -4096, 4095);
        return IIO_VAL_INT;
 
 exit: