In the case where _regulator_enable returns an error it was not checked
if a supplying regulator exists before trying to disable it, leading
to a null pointer-dereference if no supplying regulator existed.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
ret = _regulator_enable(rdev);
mutex_unlock(&rdev->mutex);
ret = _regulator_enable(rdev);
mutex_unlock(&rdev->mutex);
+ if (ret != 0 && rdev->supply)
regulator_disable(rdev->supply);
return ret;
regulator_disable(rdev->supply);
return ret;