commit 7fd6592d1287046f61bfd3cda3c03cd35be490f7
author Nikolaus Schulz <nikolaus.schulz@avionic-design.de> Fri Mar 24 13:41:51 2017 +0100
committer Jonathan Cameron <jic23@kernel.org> Sun Apr 02 11:14:49 2017 +0100
tree a47926f7b3e59dbb76684b9f18a1c3f2f2ae9082
parent 51f528a1636f352ad776a912ac86026ac7a89a2a

iio: core: Fix IIO_VAL_FRACTIONAL_LOG2 for negative values

Fix formatting of negative values of type IIO_VAL_FRACTIONAL_LOG2 by
switching from do_div(), which can't handle negative numbers, to
div_s64_rem().  Also use shift_right for shifting, which is safe with
negative values.

Signed-off-by: Nikolaus Schulz <nikolaus.schulz@avionic-design.de>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <jic23@kernel.org>