From 0e3f380e4da94e19a2e32fa00a144bed52aa561a Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 9 Jan 2013 19:34:57 +0800 Subject: [PATCH] regulator: max8998: Ensure enough delay time for max8998_set_voltage_buck_time_sel commit 81d0a6ae7befb24c06f4aa4856af7f8d1f612171 upstream. 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 Signed-off-by: Greg Kroah-Hartman --- drivers/regulator/max8998.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c index 9f980c321b87e..6a200196c3a8e 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; } -- 2.47.2