Messages in this thread Patch in this message | | | From | Christian 'Ansuel' Marangi <> | Subject | [PATCH v2 2/5] PM / devfreq: Fix kernel warning with cpufreq passive register fail | Date | Mon, 13 Jun 2022 15:42:10 +0200 |
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When the cpufreq passive register path from the passive governor fails, the cpufreq_passive_unregister is called and a kernel WARNING is always reported. This is caused by the fact that the devfreq driver already call the governor unregister with the GOV_STOP, for this reason the second cpufreq_passive_unregister always return error and a WARN is printed from the WARN_ON function. Remove the unregister call from the error handling of the cpufreq register notifier as it's fundamentally wrong and already handled by the devfreq core code.
Fixes: a03dacb0316f ("PM / devfreq: Add cpu based scaling support to passive governor") Signed-off-by: Christian 'Ansuel' Marangi <ansuelsmth@gmail.com> --- drivers/devfreq/governor_passive.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/devfreq/governor_passive.c b/drivers/devfreq/governor_passive.c index 6252f109f8d1..b1d3a1e7e3f4 100644 --- a/drivers/devfreq/governor_passive.c +++ b/drivers/devfreq/governor_passive.c @@ -325,7 +325,6 @@ static int cpufreq_passive_register_notifier(struct devfreq *devfreq) err_put_policy: cpufreq_cpu_put(policy); err: - WARN_ON(cpufreq_passive_unregister_notifier(devfreq)); return ret; } -- 2.36.1
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