OSHMEM: properly handle situation when verb is unavailable

fixed by Alex, reviewed by Miked
cmr=v1.8.2:reviewer=ompi-rm1.8

This commit was SVN r32103.

oshmem/mca/sshmem/verbs/sshmem_verbs_component.c

@@ -185,6 +185,7 @@ verbs_runtime_query(mca_base_module_t **module,
             ib_mr = ibv_exp_reg_shared_mr(&in_smr);
             if (NULL == ib_mr) {
                 mca_sshmem_verbs_component.has_shared_mr = 0;
+                rc = OSHMEM_ERR_OUT_OF_RESOURCE;
             } else {
                 opal_value_array_append_item(&device->ib_mr_array, &ib_mr);
                 mca_sshmem_verbs_component.has_shared_mr = 1;