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Date: Fri, 30 Nov 2012 13:19:33 +0800 From: Axel Lin <axel.lin@...ics.com> To: Mark Brown <broonie@...nsource.wolfsonmicro.com> Cc: Liam Girdwood <lrg@...com>, linux-kernel@...r.kernel.org Subject: [PATCH] regulator: wm831x-dcdc: Ensure selected voltage falls within requested range Use DIV_ROUND_UP to ensure selected voltage won't less than min_uV due to integer truncation. Signed-off-by: Axel Lin <axel.lin@...ics.com> --- drivers/regulator/wm831x-dcdc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c index bce2565..96450f1 100644 --- a/drivers/regulator/wm831x-dcdc.c +++ b/drivers/regulator/wm831x-dcdc.c @@ -223,7 +223,7 @@ static int wm831x_buckv_map_voltage(struct regulator_dev *rdev, if (min_uV < 600000) vsel = 0; else if (min_uV <= 1800000) - vsel = ((min_uV - 600000) / 12500) + 8; + vsel = DIV_ROUND_UP(min_uV - 600000, 12500) + 8; else return -EINVAL; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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