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| author | Pierre Gondois <Pierre.Gondois@arm.com> | 2022-04-26 16:44:48 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-05-11 19:15:14 +0200 |
| commit | c9d8923bfbcb63f15ea6cb2b5c8426fc3d96f643 (patch) | |
| tree | 09e7d95f0fc446624eca78b0bf76c991cf3e9037 /kernel/power/energy_model.c | |
| parent | 985a67709a66c456414182ed179544786e00321e (diff) | |
| download | linux-stable-c9d8923bfbcb63f15ea6cb2b5c8426fc3d96f643.tar.gz linux-stable-c9d8923bfbcb63f15ea6cb2b5c8426fc3d96f643.tar.bz2 linux-stable-c9d8923bfbcb63f15ea6cb2b5c8426fc3d96f643.zip | |
PM: EM: Decrement policy counter
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>
Diffstat (limited to 'kernel/power/energy_model.c')
| -rw-r--r-- | kernel/power/energy_model.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/power/energy_model.c b/kernel/power/energy_model.c index 092513575e4e..6c373f2960e7 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; |