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| author | Axel Lin <axel.lin@gmail.com> | 2012-05-14 10:33:37 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-05-14 09:11:34 +0100 |
| commit | ccfcb1c3cf5616ebd9c61e6c834af3b87fe6b7f7 (patch) | |
| tree | 86e098faa2a9db347395fdf814b15593ec5ebd69 | |
| parent | 684ae39b91ee7fd2855c35be7f3bf226d42516a5 (diff) | |
| download | op-kernel-dev-ccfcb1c3cf5616ebd9c61e6c834af3b87fe6b7f7.zip op-kernel-dev-ccfcb1c3cf5616ebd9c61e6c834af3b87fe6b7f7.tar.gz | |
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>
| -rw-r--r-- | drivers/regulator/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 5751f5e..8918271 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -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; |
