stm_source_unregister_device
stm_source_unregister_device(&stm_console.data);
EXPORT_SYMBOL_GPL(stm_source_unregister_device);
stm_source_unregister_device(&stm_ftrace.data);
stm_source_unregister_device(&stm_heartbeat[i].data);
stm_source_unregister_device(&stm_heartbeat[i].data);
void stm_source_unregister_device(struct stm_source_data *data);