From: Axel Lin Date: Wed, 9 Jan 2013 11:34:57 +0000 (+0800) Subject: regulator: max8998: Ensure enough delay time for max8998_set_voltage_buck_time_sel X-Git-Tag: v3.12-rc1~1589^2~1^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=81d0a6ae7befb24c06f4aa4856af7f8d1f612171;p=kernel%2Fkernel-generic.git regulator: max8998: Ensure enough delay time for max8998_set_voltage_buck_time_sel Use DIV_ROUND_UP to prevent truncation by integer division issue. This ensures we return enough delay time. Signed-off-by: Axel Lin Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c index 06be8cc..1f0df40 100644 --- a/drivers/regulator/max8998.c +++ b/drivers/regulator/max8998.c @@ -447,7 +447,7 @@ static int max8998_set_voltage_buck_time_sel(struct regulator_dev *rdev, difference = (new_selector - old_selector) * desc->step / 1000; if (difference > 0) - return difference / ((val & 0x0f) + 1); + return DIV_ROUND_UP(difference, (val & 0x0f) + 1); return 0; }