Messages in this thread Patch in this message |  | | Date | Sat, 15 Apr 2017 07:19:06 -0700 | From | tip-bot for Thomas Gleixner <> | Subject | [tip:sched/core] ACPI/processor: Fix error handling in __acpi_processor_start() |
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Commit-ID: a5cbdf693a60d5b86d4d21dfedd90f17754eb273 Gitweb: http://git.kernel.org/tip/a5cbdf693a60d5b86d4d21dfedd90f17754eb273 Author: Thomas Gleixner <tglx@linutronix.de> AuthorDate: Wed, 12 Apr 2017 22:07:33 +0200 Committer: Thomas Gleixner <tglx@linutronix.de> CommitDate: Sat, 15 Apr 2017 12:20:54 +0200
ACPI/processor: Fix error handling in __acpi_processor_start()
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@linutronix.de> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Lai Jiangshan <jiangshanlai@gmail.com> Cc: linux-acpi@vger.kernel.org Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Tejun Heo <tj@kernel.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Len Brown <lenb@kernel.org> Link: http://lkml.kernel.org/r/20170412201042.695499645@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
--- drivers/acpi/processor_driver.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index 9d5f0c7..eab8cda 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -251,6 +251,9 @@ static int __acpi_processor_start(struct acpi_device *device) if (ACPI_SUCCESS(status)) return 0; + result = -ENODEV; + acpi_pss_perf_exit(pr, device); + err_power_exit: acpi_processor_power_exit(pr); return result;
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