From f6cde0add6f1c1a27a7d9bfd962496d53e81a5e8 Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Wed, 21 Sep 2011 00:56:28 +0000
Subject: [PATCH] Fix channels with element type of size zero.

From-SVN: r179030
---
 libgo/runtime/go-new-channel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libgo/runtime/go-new-channel.c b/libgo/runtime/go-new-channel.c
index 0c6f39185de..2f5bf2ea20a 100644
--- a/libgo/runtime/go-new-channel.c
+++ b/libgo/runtime/go-new-channel.c
@@ -33,7 +33,7 @@ __go_new_channel (const struct __go_type_descriptor *channel_type,
   ientries = (int) entries;
   if (ientries < 0
       || (uintptr_t) ientries != entries
-      || entries > (uintptr_t) -1 / element_size)
+      || (element_size > 0 && entries > (uintptr_t) -1 / element_size))
     __go_panic_msg ("chan size out of range");
 
   alloc_size = (element_size + sizeof (uint64_t) - 1) / sizeof (uint64_t);