staging: iio: accel: Remove explicit comparisons
staging: iio: accel: Remove explicit comparisons

Remove comparisons to 0 or NULL

Signed-off-by: Cristina Moraru <7a90bd86017b7ef3b9ea43e55878955a3e825dec@gmail.com>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs