1 files changed, 9 insertions, 3 deletions
diff --git a/tools/d2c/pattern/tokens.l b/tools/d2c/pattern/tokens.l
index bef1e44..68dfca8 100644
--- a/tools/d2c/pattern/tokens.l
+++ b/tools/d2c/pattern/tokens.l
@@ -25,9 +25,15 @@
 
 .      {
            char *msg;
-           asprintf(&msg, "Unhandled token in d2c pattern block: '%s'", yytext);
-           YY_FATAL_ERROR(msg);
-           free(msg);
+           int ret;
+           ret = asprintf(&msg, "Unhandled token in d2c pattern block: '%s'", yytext);
+           if (ret == -1)
+               YY_FATAL_ERROR("Unhandled token in undisclosed d2c pattern block");
+           else
+           {
+               YY_FATAL_ERROR(msg);
+               free(msg);
+           }
        }