core/insert_group: free the input object if failing to insert because shmem topo

Signed-off-by: Brice Goglin <[email protected]>

Author: bgoglin

hwloc/topology.c

@@ -2051,6 +2051,7 @@ hwloc_topology_insert_group_object(struct hwloc_topology *topology, hwloc_obj_t
     return NULL;
   }
   if (topology->adopted_shmem_addr) {
+    hwloc_free_unlinked_object(obj);
     errno = EPERM;
     return NULL;
   }