From: Pierre Gondois Pierre.Gondois@arm.com
[ Upstream commit c9d8923bfbcb63f15ea6cb2b5c8426fc3d96f643 ]
In commit e458716a92b57 ("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: e458716a92b57 ("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 --- kernel/power/energy_model.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/kernel/power/energy_model.c b/kernel/power/energy_model.c index 0153b0ca7b23..6219aaa454b5 100644 --- a/kernel/power/energy_model.c +++ b/kernel/power/energy_model.c @@ -259,6 +259,8 @@ static void em_cpufreq_update_efficiencies(struct device *dev) found++; }
+ cpufreq_cpu_put(policy); + if (!found) return;