From: degomme <augustin.degomme@unibas.ch>
Date: Thu, 23 Feb 2017 11:03:39 +0000 (+0100)
Subject: Avoid unsafe things
X-Git-Tag: v3_15~305
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/05736ee0ede974fcf9fb60a13a40c50d62fcc19d

Avoid unsafe things
---

diff --git a/src/smpi/smpi_rma.cpp b/src/smpi/smpi_rma.cpp
index 3509242b1b..756adb3738 100644
--- a/src/smpi/smpi_rma.cpp
+++ b/src/smpi/smpi_rma.cpp
@@ -370,7 +370,7 @@ int smpi_mpi_win_complete(MPI_Win win){
       smpi_mpi_start(req);
   }
 
-  MPI_Request* treqs = &(*reqqs)[0];
+  MPI_Request* treqs = size > 0 ? &(*reqqs)[0] : nullptr;
   smpi_mpi_waitall(size,treqs,MPI_STATUSES_IGNORE);
   reqqs->clear();
   xbt_mutex_release(win->mut);
@@ -415,7 +415,7 @@ int smpi_mpi_win_wait(MPI_Win win){
       smpi_mpi_start(req);
   }
 
-  MPI_Request* treqs = &(*reqqs)[0];
+  MPI_Request* treqs = size > 0 ? &(*reqqs)[0] : nullptr;
   smpi_mpi_waitall(size,treqs,MPI_STATUSES_IGNORE);
   reqqs->clear();
   xbt_mutex_release(win->mut);