Messages in this thread | | | Date | Wed, 6 Mar 2019 09:27:59 +0000 | From | Charles Keepax <> | Subject | Re: [PATCH 11/13] regulator: wm831x: Fix notifier mutex lock warning |
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On Tue, Feb 26, 2019 at 03:48:46PM +0000, Steve Twiss wrote: > 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 <Adam.Thomson.Opensource@diasemi.com> > Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com> > ---
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Thanks, Charles
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