unregister_acpi_notifier
unregister_acpi_notifier(&ac->battery_nb);
unregister_acpi_notifier(&ac->battery_nb);
EXPORT_SYMBOL(unregister_acpi_notifier);
unregister_acpi_notifier(&adev->acpi_nb);
unregister_acpi_notifier(&psb_intel_opregion_notifier);
unregister_acpi_notifier(&opregion->acpi_notifier);
unregister_acpi_notifier(&drm->acpi_nb);
unregister_acpi_notifier(&device->acpi.nb);
unregister_acpi_notifier(&rdev->acpi_nb);
unregister_acpi_notifier(&platform_power_source_nb);
unregister_acpi_notifier(&platform_power_source_nb);
unregister_acpi_notifier(acpi_nb);
extern int unregister_acpi_notifier(struct notifier_block *);