From e79c38b6c6c630bae4d8245837d4fef9a77c36dd Mon Sep 17 00:00:00 2001
From: Masamitsu MURASE <masamitsu.murase@gmail.com>
Date: Wed, 5 Sep 2012 02:21:21 +0900
Subject: Check iv. iv_del should be called in mrb_iv_remove only when t is not
 NULL.

---
 src/variable.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/variable.c b/src/variable.c
index effdf51d4..74dfc02c9 100644
--- a/src/variable.c
+++ b/src/variable.c
@@ -549,7 +549,7 @@ mrb_iv_remove(mrb_state *mrb, mrb_value obj, mrb_sym sym)
     iv_tbl *t = mrb_obj_ptr(obj)->iv;
     mrb_value val;
 
-    if (iv_del(mrb, t, sym, &val)) {
+    if (t && iv_del(mrb, t, sym, &val)) {
       return val;
     }
   }
-- 
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