From 88c2af488451c7b47c28e536801f688d5b0002f9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=BA=91=E9=A3=8E?= <cloudwu@gmail.com>
Date: Fri, 26 Oct 2012 22:36:05 +0800
Subject: [PATCH] bugfix: double free

---
 skynet-src/skynet_multicast.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/skynet-src/skynet_multicast.c b/skynet-src/skynet_multicast.c
index ba2b74bb..378138d6 100644
--- a/skynet-src/skynet_multicast.c
+++ b/skynet-src/skynet_multicast.c
@@ -231,5 +231,7 @@ skynet_multicast_cast(struct skynet_context * from, struct skynet_multicast_mess
 		}
 	}
 
-	skynet_multicast_copy(msg, -release);
+	if (release != 0) {
+		skynet_multicast_copy(msg, -release);
+	}
 }