[src] fix a bug in src/online/online-faster-decoder.cc (prevent segfa…

…ult with some models) (kaldi-asr#3634)
Bar-BY · Jan 21, 2020 · 676d4b4 · 676d4b4
1 parent 95bf59a
commit 676d4b4
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/online/online-faster-decoder.cc b/src/online/online-faster-decoder.cc
@@ -88,7 +88,7 @@ void OnlineFasterDecoder::UpdateImmortalToken() {
   unordered_set<Token*> emitting;
   for (const Elem *e = toks_.GetList(); e != NULL; e = e->tail) {
     Token* tok = e->val;
-    while (tok->arc_.ilabel == 0) //deal with non-emitting ones ...
+    while (tok != NULL && tok->arc_.ilabel == 0) //deal with non-emitting ones ...
       tok = tok->prev_;
     if (tok != NULL)
       emitting.insert(tok);