3a911b8c2d
Backport devfreq new cpufreq based PASSIVE governor needed for devfreq based fab and cache scaling. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
32 lines
1.1 KiB
Diff
32 lines
1.1 KiB
Diff
From 82c66d2bbbeda9e493487e7413769087a0b46250 Mon Sep 17 00:00:00 2001
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From: Christian Marangi <ansuelsmth@gmail.com>
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Date: Mon, 20 Jun 2022 00:29:39 +0200
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Subject: [PATCH 1/1] PM / devfreq: Fix kernel warning with cpufreq passive
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register fail
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Remove cpufreq_passive_unregister_notifier from
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cpufreq_passive_register_notifier in case of error as devfreq core
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already call unregister on GOV_START fail.
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This fix the kernel always printing a WARN on governor PROBE_DEFER as
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cpufreq_passive_unregister_notifier is called two times and return
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error on the second call as the cpufreq is already unregistered.
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Fixes: a03dacb0316f ("PM / devfreq: Add cpu based scaling support to passive governor")
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Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
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Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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---
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drivers/devfreq/governor_passive.c | 1 -
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1 file changed, 1 deletion(-)
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--- a/drivers/devfreq/governor_passive.c
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+++ b/drivers/devfreq/governor_passive.c
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@@ -336,7 +336,6 @@ err_free_cpu_data:
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err_put_policy:
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cpufreq_cpu_put(policy);
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err:
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- WARN_ON(cpufreq_passive_unregister_notifier(devfreq));
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return ret;
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}
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