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    Subject[PATCH 09/11] Staging: iio: accel: Use sign_extend32 function
    Date
    Use sign_extned32() for 32 bit sign extending rather than hard coding the
    same.

    Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com>
    ---
    drivers/staging/iio/accel/adis16201.c | 5 ++---
    1 file changed, 2 insertions(+), 3 deletions(-)

    diff --git a/drivers/staging/iio/accel/adis16201.c b/drivers/staging/iio/accel/adis16201.c
    index 307d4ab..8d795e2 100644
    --- a/drivers/staging/iio/accel/adis16201.c
    +++ b/drivers/staging/iio/accel/adis16201.c
    @@ -159,9 +159,8 @@ static int adis16201_read_raw(struct iio_dev *indio_dev,
    ret = adis_read_reg_16(st, addr, &val16);
    if (ret)
    return ret;
    - val16 &= (1 << bits) - 1;
    - val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);
    - *val = val16;
    +
    + *val = sign_extend32(val16, bits - 1);
    return IIO_VAL_INT;
    }

    --
    2.7.4
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