btl/openib: have add_proc() return immediately when the port is disabled.

Fixes an issue introduced in 0a2ce58

This is a one-off commit for the v4.0.x branch since btl/openib has been removed from master.

Refs. #6137

Signed-off-by: Gilles Gouaillardet <[email protected]>

Author: ggouaillardet

opal/mca/btl/openib/btl_openib.c

@@ -1046,6 +1046,7 @@ int mca_btl_openib_add_procs(
         opal_show_help("help-mpi-btl-openib.txt", "ib port not selected",
                        true, opal_process_info.nodename,
                        ibv_get_device_name(openib_btl->device->ib_dev), openib_btl->port_num);
+        return OPAL_SUCCESS;
     }
 
     btl_rank = get_openib_btl_params(openib_btl, &lcl_subnet_id_port_cnt);

opal/mca/btl/openib/btl_openib_proc.c

@@ -277,7 +277,6 @@ mca_btl_openib_proc_t* mca_btl_openib_proc_get_locked(opal_proc_t* proc)
 
     if (0 == ib_proc->proc_port_count) {
         ib_proc->proc_endpoints = NULL;
-        goto no_err_exit;
     } else {
         ib_proc->proc_endpoints = (volatile mca_btl_base_endpoint_t**)
             malloc(ib_proc->proc_port_count *