coll/acoll: plug a memory leak

Have mca_coll_acoll_comm_query() not leak when invoked on an inter-communicator nor a single process communicator. Refs. #13070 Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>

Author: ggouaillardet

ompi/mca/coll/acoll/coll_acoll_module.c

@@ -60,11 +60,6 @@ mca_coll_base_module_t *mca_coll_acoll_comm_query(struct ompi_communicator_t *co
 {
  mca_coll_acoll_module_t *acoll_module;
 
- acoll_module = OBJ_NEW(mca_coll_acoll_module_t);
- if (NULL == acoll_module) {
- return NULL;
- }
-
  if (OMPI_COMM_IS_INTER(comm)) {
  *priority = 0;
  return NULL;
@@ -74,6 +69,11 @@ mca_coll_base_module_t *mca_coll_acoll_comm_query(struct ompi_communicator_t *co
  return NULL;
  }
 
+ acoll_module = OBJ_NEW(mca_coll_acoll_module_t);
+ if (NULL == acoll_module) {
+ return NULL;
+ }
+
  *priority = mca_coll_acoll_priority;
 
  /* Set topology params */