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 <[email protected]>
Cc: Fenghua Yu <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "Rafael J. Wysocki" <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Sebastian Siewior <[email protected]>
Cc: Lai Jiangshan <[email protected]>
Cc: [email protected]
Cc: Viresh Kumar <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Tejun Heo <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Len Brown <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>

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