From 6c476d7822e3bf1ef7c0daafbbc184f7316b0b58 Mon Sep 17 00:00:00 2001
From: Brian Barrett <brbarret@open-mpi.org>
Date: Wed, 30 Mar 2005 18:03:08 +0000
Subject: [PATCH] * fix free() of NULL when no MPI applications are started

This commit was SVN r5104.
---
 src/runtime/ompi_progress.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/runtime/ompi_progress.c b/src/runtime/ompi_progress.c
index b865d775cf..a4693209e0 100644
--- a/src/runtime/ompi_progress.c
+++ b/src/runtime/ompi_progress.c
@@ -110,8 +110,10 @@ ompi_progress_finalize(void)
     ompi_atomic_lock(&progress_lock);
 #endif
 
-    free(callbacks);
-    callbacks = NULL;
+    if (NULL != callbacks) {
+        free(callbacks);
+        callbacks = NULL;
+    }
     callbacks_len = 0;
     callbacks_size = 0;