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| author | Axel Lin <axel.lin@gmail.com> | 2012-04-16 14:44:23 +0400 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-04-16 22:55:08 +0400 |
| commit | 854ccbaee7e48734936690a3fd4817c57e98aaad (patch) | |
| tree | 84c723a0ca25092e6a0c8d21ca96ea9975c3ff5b /drivers/regulator/core.c | |
| parent | 8ac0e95d6467ced054565312ecdf0a55a5333c64 (diff) | |
| download | linux-854ccbaee7e48734936690a3fd4817c57e98aaad.tar.xz | |
regulator: core: Add checking set_mode callback in regulator_set_optimum_mode
regulator_set_optimum_mode needs set_mode to properly work.
Add checking for set_mode callback in case it may be not implemented.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/regulator/core.c')
| -rw-r--r-- | drivers/regulator/core.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 5c0c975e5ac2..2f0d557a910d 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2335,6 +2335,9 @@ int regulator_set_optimum_mode(struct regulator *regulator, int uA_load) */ ret = -EINVAL; + if (!rdev->desc->ops->set_mode) + goto out; + /* get output voltage */ output_uV = _regulator_get_voltage(rdev); if (output_uV <= 0) { |