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>
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@ -2047,7 +2047,7 @@ int regulator_map_voltage_linear(struct regulator_dev *rdev,
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return -EINVAL;
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}
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ret = (min_uV - rdev->desc->min_uV) / rdev->desc->uV_step;
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ret = DIV_ROUND_UP(min_uV - rdev->desc->min_uV, rdev->desc->uV_step);
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if (ret < 0)
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return ret;
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