This is a note to let you know that I've just added the patch titled
ACPI/processor: Fix error handling in __acpi_processor_start()
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
acpi-processor-fix-error-handling-in-__acpi_processor_start.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Thu Mar 22 14:40:23 CET 2018
From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Date: Wed, 12 Apr 2017 22:07:33 +0200
Subject: ACPI/processor: Fix error handling in __acpi_processor_start()
From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
[ Upstream commit a5cbdf693a60d5b86d4d21dfedd90f17754eb273 ]
When acpi_install_notify_handler() fails the cooling device stays
registered and the sysfs files created via acpi_pss_perf_init() are
leaked and the function returns success.
Undo acpi_pss_perf_init() and return a proper error code.
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Fenghua Yu <fenghua.yu@xxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Cc: "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Sebastian Siewior <bigeasy@xxxxxxxxxxxxx>
Cc: Lai Jiangshan <jiangshanlai@xxxxxxxxx>
Cc: linux-acpi@xxxxxxxxxxxxxxx
Cc: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: Len Brown <lenb@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/20170412201042.695499645@xxxxxxxxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/acpi/processor_driver.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -251,6 +251,9 @@ static int __acpi_processor_start(struct
if (ACPI_SUCCESS(status))
return 0;
+ result = -ENODEV;
+ acpi_pss_perf_exit(pr, device);
+
err_power_exit:
acpi_processor_power_exit(pr);
return result;
Patches currently in stable-queue which might be from tglx@xxxxxxxxxxxxx are
queue-4.9/acpi-processor-fix-error-handling-in-__acpi_processor_start.patch
queue-4.9/x86-reboot-turn-off-kvm-when-halting-a-cpu.patch
queue-4.9/acpi-processor-replace-racy-task-affinity-logic.patch
queue-4.9/time-change-posix-clocks-ops-interfaces-to-use-timespec64.patch
queue-4.9/genirq-use-irqd_get_trigger_type-to-compare-the-trigger-type-for-shared-irqs.patch
queue-4.9/cpufreq-sh-replace-racy-task-affinity-logic.patch
queue-4.9/irqchip-mips-gic-separate-ipi-reservation-usage-tracking.patch
queue-4.9/x86-kaslr-fix-kexec-kernel-boot-crash-when-kaslr-randomization-fails.patch