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PM: EM: Decrement policy counter 

[ Upstream commit c9d8923bfb ]

In commit e458716a92 ("PM: EM: Mark inefficiencies in CPUFreq"),
cpufreq_cpu_get() is called without a cpufreq_cpu_put(), permanently
increasing the reference counts of the policy struct.

Decrement the reference count once the policy struct is not used
anymore.

Fixes: e458716a92 ("PM: EM: Mark inefficiencies in CPUFreq")
Tested-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Vincent Donnefort <vincent.donnefort@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Pierre Gondois 2022-04-26 16:44:48 +02:00 committed by Greg Kroah-Hartman
parent 671be14fc3
commit 2d5cf68131
1 changed files with 2 additions and 0 deletions
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2
kernel/power/energy_model.c
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@ -259,6 +259,8 @@ static void em_cpufreq_update_efficiencies(struct device *dev)
found++;
}
cpufreq_cpu_put(policy);
if (!found)
return;