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powercap/dtpm_cpu: Reset per_cpu variable in the release function 

[ Upstream commit 0aea2e4ec2 ]

The release function does not reset the per cpu variable when it is
called. That will prevent creation again as the variable will be
already from the previous creation.

Fix it by resetting them.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20220130210210.549877-2-daniel.lezcano@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Daniel Lezcano 2022-01-30 22:02:04 +01:00 committed by Greg Kroah-Hartman
parent eef89099bf
commit b51658a374
1 changed files with 7 additions and 0 deletions
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7
drivers/powercap/dtpm_cpu.c
View File

@ -150,10 +150,17 @@ static int update_pd_power_uw(struct dtpm *dtpm)
static void pd_release(struct dtpm *dtpm)
{
struct dtpm_cpu *dtpm_cpu = to_dtpm_cpu(dtpm);
struct cpufreq_policy *policy;
if (freq_qos_request_active(&dtpm_cpu->qos_req))
freq_qos_remove_request(&dtpm_cpu->qos_req);
policy = cpufreq_cpu_get(dtpm_cpu->cpu);
if (policy) {
for_each_cpu(dtpm_cpu->cpu, policy->related_cpus)
per_cpu(dtpm_per_cpu, dtpm_cpu->cpu) = NULL;
}
kfree(dtpm_cpu);
}