[patch 07/13] ACPI/processor: Fix error handling in __acpi_processor_start()

[Thomas Gleixner]

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 <t...@linutronix.de>
Cc: "Rafael J. Wysocki" <r...@rjwysocki.net>
Cc: Len Brown <l...@kernel.org>
Cc: linux-a...@vger.kernel.org
---
 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;