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regulator: core: Properly handle the case min_uV < rdev->desc->min_uV in map_voltage_linear

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Properly handle the case if the specified min_uV is less than the voltage given
by the lowest selector.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Axel Lin 2012-06-07 09:52:12 +08:00 committed by Mark Brown
parent 61663171be
commit 0bdc81e4e9
1 changed files with 3 additions and 0 deletions
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3
drivers/regulator/core.c
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@ -2050,6 +2050,9 @@ int regulator_map_voltage_linear(struct regulator_dev *rdev,
return -EINVAL;
}
if (min_uV < rdev->desc->min_uV)
min_uV = rdev->desc->min_uV;
ret = DIV_ROUND_UP(min_uV - rdev->desc->min_uV, rdev->desc->uV_step);
if (ret < 0)
return ret;