Fix a warning reported by Jeff that actually could cause singleton operations to fail. Ensure that the byte object used to init the job map for singleton's is properly initialized.

This commit was SVN r19957.

orte/mca/odls/base/odls_base_default_fns.c

@@ -1471,6 +1471,8 @@ static void setup_singleton_jobdat(orte_jobid_t jobid)
     opal_dss.pack(&buffer, &nrank, 1, ORTE_NODE_RANK);  /* node rank */
     one8 = 0;
     opal_dss.pack(&buffer, &one8, 1, OPAL_INT8);  /* app_idx */
+    /* setup a byte object and unload the packed data to it */
+    bo = (opal_byte_object_t*)malloc(sizeof(opal_byte_object_t));
     opal_dss.unload(&buffer, (void**)&bo->bytes, &bo->size);
     OBJ_DESTRUCT(&buffer);
     /* save a copy to send back to the proc */
@@ -1479,6 +1481,8 @@ static void setup_singleton_jobdat(orte_jobid_t jobid)
     if (ORTE_SUCCESS != (rc = orte_ess.add_pidmap(jobid, bo))) {
         ORTE_ERROR_LOG(rc);
     }
+    free(bo);
+    
     /* if we don't yet have a daemon map, then we have to generate one
      * to pass back to it
      */
@@ -1489,12 +1493,14 @@ static void setup_singleton_jobdat(orte_jobid_t jobid)
             ORTE_ERROR_LOG(rc);
         }
         /* we also need to update our local nidmap - copy the dmap
-         * as this will release the byte object's data
+         * as this will release the byte object's data. The copy function
+         * will automatically malloc the bo itself, so we don't need to do so here
          */
         opal_dss.copy((void**)&bo, orte_odls_globals.dmap, OPAL_BYTE_OBJECT);
         if (ORTE_SUCCESS != (rc = orte_ess.update_nidmap(bo))) {
             ORTE_ERROR_LOG(rc);
         }
+        free(bo);
     }
     /* setup the daemon collectives */
     jobdat->num_participating = 1;