Make sure we do not call malloc(0). This should not be harmful, but better be safe.

git-svn-id: http://svn.cactuscode.org/arrangements/CactusPUGH/PUGH/trunk@498 b61c5cb5-eaca-4651-9a7a-d64986f99364

1 files changed, 2 insertions, 1 deletions

diff --git a/src/Topology.c b/src/Topology.c
index 4849ba9..4b4b460 100644
--- a/src/Topology.c
+++ b/src/Topology.c
@@ -243,7 +243,7 @@ static int FranksTopology(int dim,
   int max_dir, max_length;
   int free_procs = total_procs-1;
   int used_procs = 1;
-  int *my_nprocs = (int*)malloc(dim*sizeof(int));
+  int *my_nprocs;
   
   /* Nothing to decompose here */
   if (dim == 0)
@@ -251,6 +251,7 @@ static int FranksTopology(int dim,
     return TraditionalTopology(dim, total_procs, nsize, 
                                         nghostzones, nprocs);
   }
+  my_nprocs = (int*)malloc(dim*sizeof(int));
 
   /* start with a single domain */
   for (i = 0; i < dim; i++)