46 lines
1.6 KiB
Diff
46 lines
1.6 KiB
Diff
From: Thomas Gleixner <tglx@linutronix.de>
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Date: Wed, 12 Apr 2017 22:07:33 +0200
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Subject: [PATCH 07/13] ACPI/processor: Fix error handling in
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__acpi_processor_start()
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.11/older/patches-4.11.9-rt7.tar.xz
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When acpi_install_notify_handler() fails the cooling device stays
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registered and the sysfs files created via acpi_pss_perf_init() are
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leaked and the function returns success.
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Undo acpi_pss_perf_init() and return a proper error code.
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Cc: Fenghua Yu <fenghua.yu@intel.com>
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Cc: Tony Luck <tony.luck@intel.com>
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Cc: Herbert Xu <herbert@gondor.apana.org.au>
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Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
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Cc: Peter Zijlstra <peterz@infradead.org>
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Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Cc: Sebastian Siewior <bigeasy@linutronix.de>
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Cc: Lai Jiangshan <jiangshanlai@gmail.com>
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Cc: linux-acpi@vger.kernel.org
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Cc: Viresh Kumar <viresh.kumar@linaro.org>
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Cc: Michael Ellerman <mpe@ellerman.id.au>
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Cc: Tejun Heo <tj@kernel.org>
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Cc: "David S. Miller" <davem@davemloft.net>
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Cc: Len Brown <lenb@kernel.org>
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Link: http://lkml.kernel.org/r/20170412201042.695499645@linutronix.de
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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drivers/acpi/processor_driver.c | 3 +++
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1 file changed, 3 insertions(+)
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--- a/drivers/acpi/processor_driver.c
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+++ b/drivers/acpi/processor_driver.c
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@@ -251,6 +251,9 @@ static int __acpi_processor_start(struct
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if (ACPI_SUCCESS(status))
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return 0;
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+ result = -ENODEV;
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+ acpi_pss_perf_exit(pr, device);
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+
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err_power_exit:
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acpi_processor_power_exit(pr);
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return result;
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