staging:iio:accel:adis16203: sign extend function rather code duplication

Use sign_extend32 kernel function instead of code duplication.
This function is also safe for 16 bits.

Signed-off-by: Karim Eshapa <karim.eshapa@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Karim Eshapa 2018-06-12 18:48:38 +02:00 • committed by Jonathan Cameron
commit c660abab5c