From 26de612013813687e11793c7d991b03a0982c8e0 Mon Sep 17 00:00:00 2001
From: nagachika <nagachika@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 19 Apr 2013 16:16:55 +0000
Subject: merge revision(s) 40000: [Backport #8097]

	* thread.c (rb_mutex_synchronize_m): yield no block params.  patch by
	  splattael (Peter Suschlik) in [ruby-core:53773] [Bug #8097].
	  fix GH-266.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@40380 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 thread.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'thread.c')

diff --git a/thread.c b/thread.c
index ffb266c64d..60640d9445 100644
--- a/thread.c
+++ b/thread.c
@@ -4521,7 +4521,7 @@ rb_mutex_synchronize_m(VALUE self, VALUE args)
 	rb_raise(rb_eThreadError, "must be called with a block");
     }
 
-    return rb_mutex_synchronize(self, rb_yield, Qnil);
+    return rb_mutex_synchronize(self, rb_yield, Qundef);
 }
 
 void rb_mutex_allow_trap(VALUE self, int val)
-- 
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