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> --- 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 9d5f0c7ed3f7..eab8cdad7dc3 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; -- 2.14.1 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
