Set yytoken to non-negative value for [coverity CID 29259]

dajobe · Apr 19, 2014 · 624518f · 624518f
1 parent e2efe02
commit 624518f
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/scripts/fix-bison b/scripts/fix-bison
@@ -51,6 +51,15 @@ while(<>) {
     next;
   }
 
+  if(m%yysyntax_error_status = YYSYNTAX_ERROR%) {
+    # Set yytoken to non-negative value for coverity CID 29259
+    my $line=$_;
+    print qq{if(yytoken < 0) yytoken = YYUNDEFTOK;\n};
+    $line_offset++; # extra line
+    print $line;
+    next;
+  }
+
   # Suppress warnings about empty declarations
   s/(^static int .*_init_globals.*);$/$1/;