opp: Reduce the size of critical section in _opp_table_kref_release()
[ Upstream commit e0df59de67
]
There is a lot of stuff here which can be done outside of the big
opp_table_lock, do that. This helps avoiding few circular dependency
lockdeps around debugfs and interconnects.
Reported-by: Rob Clark <robdclark@gmail.com>
Reported-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -1046,6 +1046,10 @@ static void _opp_table_kref_release(struct kref *kref)
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struct opp_table *opp_table = container_of(kref, struct opp_table, kref);
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struct opp_device *opp_dev, *temp;
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/* Drop the lock as soon as we can */
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list_del(&opp_table->node);
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mutex_unlock(&opp_table_lock);
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_of_clear_opp_table(opp_table);
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/* Release clk */
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@ -1067,10 +1071,7 @@ static void _opp_table_kref_release(struct kref *kref)
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mutex_destroy(&opp_table->genpd_virt_dev_lock);
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mutex_destroy(&opp_table->lock);
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list_del(&opp_table->node);
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kfree(opp_table);
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mutex_unlock(&opp_table_lock);
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}
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void dev_pm_opp_put_opp_table(struct opp_table *opp_table)
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