struct tgt_work *work;
int tgt_cmnd_queue(struct tgt_cmnd *cmnd, void (*done)(struct tgt_cmnd *)){	struct tgt_work *work;	struct tgt_session *session = cmnd->session;	BUG_ON(cmnd->done);	cmnd->done = done;	if (!done) {		eprintk("%s\n", "Null done function!");		return -EINVAL;	}	work = tgt_init_work(session, queuecommand, cmnd);	if (!work)		return -ENOMEM;	tgt_queue_work(session->target, work);	return 0;}