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