Remove the unqueued work reference when we discard work from get queued as well.

sgminer.c

@@ -6332,11 +6332,10 @@ struct work *get_queued(struct cgpu_info *cgpu)
 			work = NULL;
 			wake_gws();
 			goto out_unlock;
-		}
+		} else
 			__add_queued(cgpu, work);
 		cgpu->unqueued_work = NULL;
 	}
-out_unlock:
 	wr_unlock(&cgpu->qlock);
 
 	return work;