Messages in this thread Patch in this message | | | Subject | [PATCH] regulator: core: Add checking set_mode callback in regulator_set_optimum_mode | From | Axel Lin <> | Date | Fri, 13 Apr 2012 18:49:27 +0800 |
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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> --- drivers/regulator/core.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 1bd71a8..f241671 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2340,6 +2340,11 @@ int regulator_set_optimum_mode(struct regulator *regulator, int uA_load) */ ret = -EINVAL; + if (!rdev->desc->ops->set_mode) { + rdev_err(rdev, "no set_mode operation\n"); + goto out; + } + /* get output voltage */ output_uV = _regulator_get_voltage(rdev); if (output_uV <= 0) { -- 1.7.5.4
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