intel_pstate_unregister_driver 2531 drivers/cpufreq/intel_pstate.c intel_pstate_unregister_driver() : -EINVAL; intel_pstate_unregister_driver 2538 drivers/cpufreq/intel_pstate.c ret = intel_pstate_unregister_driver(); intel_pstate_unregister_driver 2551 drivers/cpufreq/intel_pstate.c ret = intel_pstate_unregister_driver();