From: pini <pini@48e7efb5-ca39-0410-a469-dd3cf9ba447f>
Date: Fri, 7 Jan 2011 16:54:16 +0000 (+0000)
Subject: Check if the pointer is writable.
X-Git-Tag: v3.6_beta2~546
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/01493b1dd18d0d860520818b1cfee068b046b4f3

Check if the pointer is writable.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@9382 48e7efb5-ca39-0410-a469-dd3cf9ba447f
---

diff --git a/src/smpi/smpi_pmpi.c b/src/smpi/smpi_pmpi.c
index b8d53b5ddc..d229642b43 100644
--- a/src/smpi/smpi_pmpi.c
+++ b/src/smpi/smpi_pmpi.c
@@ -622,6 +622,8 @@ int PMPI_Comm_rank(MPI_Comm comm, int *rank)
   smpi_bench_end();
   if (comm == MPI_COMM_NULL) {
     retval = MPI_ERR_COMM;
+  } else if (rank == NULL) {
+    retval = MPI_ERR_ARG;
   } else {
     *rank = smpi_comm_rank(comm);
     retval = MPI_SUCCESS;