ACPI: processor: Remove freq Qos request for all CPUs

The freq Qos request would be removed repeatedly if the cpufreq policy
relates to more than one CPU. Then, it would cause the "called for unknown
object" warning.

Remove the freq Qos request for each CPU relates to the cpufreq policy,
instead of removing repeatedly for the last CPU of it.

Fixes: a1bb46c36ce3 ("ACPI: processor: Add QoS requests for all CPUs")
Reported-by: Jeremy Linton <Jeremy.Linton@arm.com>
Tested-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Riwen Lu <luriwen@kylinos.cn>
Cc: 5.4+ <stable@vger.kernel.org> # 5.4+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c
index db6ac540e924a75f51b41ba7fd35922d0dfa1f58..e534fd49a67e50877cc9ecd2672720fceed467f5 100644 (file)
--- a/drivers/acpi/processor_thermal.c
+++ b/drivers/acpi/processor_thermal.c
@@ -151,7 +151,7 @@ void acpi_thermal_cpufreq_exit(struct cpufreq_policy *policy)
        unsigned int cpu;
 
        for_each_cpu(cpu, policy->related_cpus) {
-               struct acpi_processor *pr = per_cpu(processors, policy->cpu);
+               struct acpi_processor *pr = per_cpu(processors, cpu);
 
                if (pr)
                        freq_qos_remove_request(&pr->thermal_req);