regulator: wm831x: 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: e4ee831f949a ("regulator: Add WM831x DC-DC buck convertor support")
Suggested-by: Adam Thomson <[email protected]>
Signed-off-by: Steve Twiss <[email protected]>
Acked-by: Charles Keepax <[email protected]>
Signed-off-by: Mark Brown <[email protected]>

0 files changed, 0 insertions, 0 deletions