SCI: fix negative array access in parseNodes

was used for debug command only CID 1003543
scummvm · Jan 27, 2014 · 3f116d9 · 3f116d9
1 parent 0f5eeae
commit 3f116d9
Showing 1 changed file with 3 additions and 4 deletions.
diff --git a/engines/sci/parser/vocabulary.cpp b/engines/sci/parser/vocabulary.cpp
@@ -724,14 +724,13 @@ int Vocabulary::parseNodes(int *i, int *pos, int type, int nr, int argc, const c
 
 		newPos = parseNodes(i, pos, nextToken, nextValue, argc, argv);
 
+		if (newPos == -1)
+			return -1;
+
 		if (j == 0)
 			 _parserNodes[oldPos].left = &_parserNodes[newPos];
 		else
 			 _parserNodes[oldPos].right = &_parserNodes[newPos];
-
-
-		if (newPos == -1)
-			return -1;
 	}
 
 	const char *token = argv[(*i)++];