linux-kernel - [PATCH 5.4 44/77] ACPI: processor: Remove freq Qos request for all CPUs

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Message-Id: <20220902121405.116990661@linuxfoundation.org>
Date:   Fri,  2 Sep 2022 14:18:53 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jeremy Linton <Jeremy.Linton@....com>,
        Jeremy Linton <jeremy.linton@....com>,
        Riwen Lu <luriwen@...inos.cn>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Subject: [PATCH 5.4 44/77] ACPI: processor: Remove freq Qos request for all CPUs

From: Riwen Lu <luriwen@...inos.cn>

commit 36527b9d882362567ceb4eea8666813280f30e6f upstream.

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@....com>
Tested-by: Jeremy Linton <jeremy.linton@....com>
Signed-off-by: Riwen Lu <luriwen@...inos.cn>
Cc: 5.4+ <stable@...r.kernel.org> # 5.4+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/acpi/processor_thermal.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/acpi/processor_thermal.c
+++ b/drivers/acpi/processor_thermal.c
@@ -150,7 +150,7 @@ void acpi_thermal_cpufreq_exit(struct cp
 	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);