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It is currently queued on system_wq, so it can run > after the backing bus has suspended. > > Queue the worker on system_freezable_wq so hardware access is deferred > until devices have resumed. > > Fixes: e6ed90581bfa ("regulator: arizona-micsupp: Enable SYSCLK for charge pump") > Cc: stable@vger.kernel.org > Signed-off-by: Jiale Yao > --- > drivers/regulator/arizona-micsupp.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/regulator/arizona-micsupp.c b/drivers/regulator/arizona-micsupp.c > index be7208bc7409..ae99173b8236 100644 > --- a/drivers/regulator/arizona-micsupp.c > +++ b/drivers/regulator/arizona-micsupp.c > @@ -78,7 +78,7 @@ static int arizona_micsupp_enable(struct regulator_dev *rdev) > ret = regulator_enable_regmap(rdev); > > if (ret == 0) > - schedule_work(&micsupp->check_cp_work); > + queue_work(system_freezable_wq, &micsupp->check_cp_work); The Sashiko concerns here seem fairly plausible, I suspect the fix might not be quite this simple. This is a fairly old driver at this point and I suspect this might become quite an involved fix, are you actually observing a problem or is this based on static analysis? I am inclined to say if we arn't seeing a problem IRL perhaps its better to leave this one for now. Thanks, Charles > return ret; > } > @@ -90,7 +90,7 @@ static int arizona_micsupp_disable(struct regulator_dev *rdev) > > ret = regulator_disable_regmap(rdev); > if (ret == 0) > - schedule_work(&micsupp->check_cp_work); > + queue_work(system_freezable_wq, &micsupp->check_cp_work); > > return ret; > } > @@ -102,7 +102,7 @@ static int arizona_micsupp_set_bypass(struct regulator_dev *rdev, bool ena) > > ret = regulator_set_bypass_regmap(rdev, ena); > if (ret == 0) > - schedule_work(&micsupp->check_cp_work); > + queue_work(system_freezable_wq, &micsupp->check_cp_work); > > return ret; > } > -- > 2.34.1 >