From 52263a1d3f4556bb29e29984e13ab1f3a050582d Mon Sep 17 00:00:00 2001
From: Augustin Degomme <degomme@idpann.imag.fr>
Date: Tue, 9 Apr 2013 10:08:31 +0200
Subject: [PATCH] Fix possible leak with 0 sized messages

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

diff --git a/src/smpi/smpi_base.c b/src/smpi/smpi_base.c
index d7d32fcdd3..6ffe7f6484 100644
--- a/src/smpi/smpi_base.c
+++ b/src/smpi/smpi_base.c
@@ -362,7 +362,7 @@ void smpi_mpi_start(MPI_Request request)
       request->refcount++;
       if(request->old_type->has_subtype == 0){
         oldbuf = request->buf;
-        if (oldbuf){
+        if (oldbuf && request->size!=0){
           request->buf = xbt_malloc(request->size);
           memcpy(request->buf,oldbuf,request->size);
         }
-- 
2.20.1