Using CHANNEL_FINISHED macro in connection.c

src/or/connection.c

@@ -544,8 +544,7 @@ connection_free_(connection_t *conn)
                or_conn, TLS_CHAN_TO_BASE(or_conn->chan),
                U64_PRINTF_ARG(
                  TLS_CHAN_TO_BASE(or_conn->chan)->global_identifier));
-      if (!(TLS_CHAN_TO_BASE(or_conn->chan)->state == CHANNEL_STATE_CLOSED ||
-            TLS_CHAN_TO_BASE(or_conn->chan)->state == CHANNEL_STATE_ERROR)) {
+      if (!CHANNEL_FINISHED(TLS_CHAN_TO_BASE(or_conn->chan))) {
         channel_close_for_error(TLS_CHAN_TO_BASE(or_conn->chan));
       }