btl/ugni: return a descriptor from sendi

Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>

opal/mca/btl/ugni/btl_ugni_send.c

@@ -119,10 +119,9 @@ int mca_btl_ugni_sendi (struct mca_btl_base_module_t *btl,
     int rc;
 
     do {
-        if (OPAL_UNLIKELY(OPAL_SUCCESS != mca_btl_ugni_check_endpoint_state (endpoint) ||
-                          opal_list_get_size (&endpoint->frag_wait_list))) {
-            break;
-        }
+        BTL_VERBOSE(("btl/ugni isend sending fragment from %d -> %d. length = %" PRIu64
+                     " endoint state %d", OPAL_PROC_MY_NAME.vpid, endpoint->peer_proc->proc_name.vpid,
+                     payload_size + header_size, endpoint->state));
 
         flags |= MCA_BTL_DES_FLAGS_BTL_OWNERSHIP;
 
@@ -135,7 +134,8 @@ int mca_btl_ugni_sendi (struct mca_btl_base_module_t *btl,
         }
 
         assert (packed_size == payload_size);
-        if (OPAL_UNLIKELY(NULL == frag)) {
+        if (OPAL_UNLIKELY(NULL == frag || OPAL_SUCCESS != mca_btl_ugni_check_endpoint_state (endpoint) ||
+                          opal_list_get_size (&endpoint->frag_wait_list))) {
             break;
         }
 
@@ -152,8 +152,9 @@ int mca_btl_ugni_sendi (struct mca_btl_base_module_t *btl,
     } while (0);
 
     if (NULL != descriptor) {
-        *descriptor = NULL;
+        *descriptor = &frag->base;
     }
+
     return OPAL_ERR_OUT_OF_RESOURCE;
 }