regulator: ltc3589: Fix notifier mutex lock warning
The mutex for the regulator_dev must be controlled by the caller of the regulator_notifier_call_chain(), as described in the comment for that function. Failure to mutex lock and unlock surrounding the notifier call results in a kernel WARN_ON_ONCE() which will dump a backtrace for the regulator_notifier_call_chain() when that function call is first made. The mutex can be controlled using the regulator_lock/unlock() API. Fixes: 3eb2c7ec ("regulator: Add LTC3589 support") Suggested-by:Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by:
Steve Twiss <stwiss.opensource@diasemi.com> Signed-off-by:
Mark Brown <broonie@kernel.org>
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