Commit ccfcb1c3 authored May 14, 2012 by Axel Lin Committed by Mark Brown May 14, 2012

regulator: core: Ensure simple linear voltage mappings falls within the specified range



Integer division may truncate the result.
Use DIV_ROUND_UP to ensure simple linear voltage mappings falls within the
specified range.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

parent 684ae39b

drivers/regulator/core.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2047,7 +2047,7 @@ int regulator_map_voltage_linear(struct regulator_dev *rdev,
		return -EINVAL;
		}

		ret = (min_uV - rdev->desc->min_uV) / rdev->desc->uV_step;
		ret = DIV_ROUND_UP(min_uV - rdev->desc->min_uV, rdev->desc->uV_step);
		if (ret < 0)
		return ret;