Liam Beguin b47a8cd482 iio: afe: rescale: use s64 for temporary scale calculations ... commit 51593106b608ae4247cc8da928813347da16d025 upstream. All four scaling coefficients can take signed values. Make tmp a signed 64-bit integer and switch to div_s64() to preserve signs during 64-bit divisions. Fixes: 8b74816b5a ("iio: afe: rescale: new driver") Signed-off-by: Liam Beguin <liambeguin@gmail.com> Reviewed-by: Peter Rosin <peda@axentia.se> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220108205319.2046348-5-liambeguin@gmail.com Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-04-15 14:14:38 +02:00
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iio-rescale.c
Kconfig
Makefile