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: 0de7288a58b9 ("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>

diff --git a/drivers/devfreq/governor_passive.c b/drivers/devfreq/governor_passive.c
index 406ef79c0c461f7a394a7eefa9751a909dbcb302..bce487cc8f3ebd0cb268e6118ffa9615692444aa 100644 (file)
--- a/drivers/devfreq/governor_passive.c
+++ b/drivers/devfreq/governor_passive.c
@@ -330,7 +330,6 @@ err_free_cpu_data:
 err_put_policy:
        cpufreq_cpu_put(policy);
 err:
-       WARN_ON(cpufreq_passive_unregister_notifier(devfreq));
 
        return ret;
 }