From bbf24b84630eb3b3e18b04bcabd088ad22353957 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Tue, 30 Sep 2014 22:46:19 +0900
Subject: mrb_sym2name_len() should initialize lenp even when proper symbol
 does not exist

---
 src/symbol.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/symbol.c b/src/symbol.c
index 6a9ee91cd..98c258503 100644
--- a/src/symbol.c
+++ b/src/symbol.c
@@ -148,6 +148,7 @@ MRB_API const char*
 mrb_sym2name_len(mrb_state *mrb, mrb_sym sym, mrb_int *lenp)
 {
   if (sym == 0 || mrb->symidx < sym) {
+    if (lenp) *lenp = 0;
     return NULL;
   }
 
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