acpi_ex_release_mutex_object
acpi_status acpi_ex_release_mutex_object(union acpi_operand_object *obj_desc);
status = acpi_ex_release_mutex_object(acpi_gbl_global_lock_mutex);
status = acpi_ex_release_mutex_object(obj_desc);
status = acpi_ex_release_mutex_object(acpi_gbl_global_lock_mutex);