From 53a7549e1c0dd9a189ac40804b2f5f3e600c9e76 Mon Sep 17 00:00:00 2001
From: Tatsuhiko Kubo <cubicdaiya@gmail.com>
Date: Wed, 20 Aug 2014 05:15:21 +0900
Subject: Fix error handling for mrb_open_allocf().

When DISABLE_GEMS is not defined and
a return value of mrb_open_core() is NULL,
mrb_open_allocf() may cause SEGV.
---
 src/state.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src')

diff --git a/src/state.c b/src/state.c
index 9c16524f2..8d6993b6f 100644
--- a/src/state.c
+++ b/src/state.c
@@ -110,6 +110,10 @@ mrb_open_allocf(mrb_allocf f, void *ud)
 {
   mrb_state *mrb = mrb_open_core(f, ud);
 
+  if (mrb == NULL) {
+    return NULL;
+  }
+
 #ifndef DISABLE_GEMS
   mrb_init_mrbgems(mrb);
   mrb_gc_arena_restore(mrb, 0);
-- 
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