btl/openib: fix problems from commit b3617e73

For systems with OFED's lacking XRC support, commit b3617e73
broke the build of the openib btl.  This commit addresses
the issues introduced by this commit.

opal/mca/btl/openib/connect/btl_openib_connect_udcm.c

@@ -2534,6 +2534,7 @@ static int udcm_xrc_recv_qp_connect (mca_btl_openib_endpoint_t *lcl_ep)
         return OPAL_SUCCESS;
     }
 #else
+    int ret;
     BTL_VERBOSE(("Connecting receive qp: %d", lcl_ep->xrc_recv_qp_num));
     ret = ibv_reg_xrc_rcv_qp(openib_btl->device->xrc_domain, lcl_ep->xrc_recv_qp_num);
     if (ret) { /* failed to regester the qp, so it is already die and we should create new one */
@@ -2578,10 +2579,10 @@ static int udcm_xrc_recv_qp_create (mca_btl_openib_endpoint_t *lcl_ep, udcm_msg_
     memset(&qp_init_attr, 0, sizeof(struct ibv_qp_init_attr));
     /* Only xrc_domain is required, all other are ignored */
     qp_init_attr.xrc_domain = openib_btl->device->xrc_domain;
-    ret = ibv_create_xrc_rcv_qp(&qp_init_attr, &lcl_ep->xrc_recv_qp->qp_num);
+    ret = ibv_create_xrc_rcv_qp(&qp_init_attr, &lcl_ep->xrc_recv_qp_num);
     if (ret) {
         BTL_ERROR(("Error creating XRC recv QP[%x], errno says: %s [%d]",
-                   lcl_ep->xrc_recv_qp->qp_num, strerror(ret), ret));
+                   lcl_ep->xrc_recv_qp_num, strerror(ret), ret));
         return OPAL_ERROR;
     }
 #endif