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staging: comedi: rtd520: use DIV_ROUND_CLOSEST and DIV_ROUND_UP macros

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Use the macros to clarify the divisor calculations.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2015-09-24 17:52:11 -07:00 • committed by Greg Kroah-Hartman
commit da6877732d
1 changed files with 2 additions and 2 deletions
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4
drivers/staging/comedi/drivers/rtd520.c
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@ -392,13 +392,13 @@ static int rtd_ns_to_timer_base(unsigned int *nanosec,
switch (flags & CMDF_ROUND_MASK) {
case CMDF_ROUND_NEAREST:
default:
divider = (*nanosec + base / 2) / base;
divider = DIV_ROUND_CLOSEST(*nanosec, base);
break;
case CMDF_ROUND_DOWN:
divider = (*nanosec) / base;
break;
case CMDF_ROUND_UP:
divider = (*nanosec + base - 1) / base;
divider = DIV_ROUND_UP(*nanosec, base);
break;
}
if (divider < 2)