Priorities really shouldn't be less than 0.

This commit was SVN r27098.

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

@@ -307,7 +307,7 @@ static int udcm_send_request (mca_btl_base_endpoint_t *lcl_ep,
 #define UDCM_GRH_SIZE (sizeof (struct ibv_grh))
 
 /* Priority of this connection module */
-static int udcm_priority        = -1;
+static int udcm_priority        = 0;
 
 /* Number of receive work requests to post */
 static int udcm_recv_count      = UDCM_MIN_RECV_COUNT;
@@ -362,7 +362,7 @@ static void udcm_component_register(void)
                            false, false, udcm_priority, &udcm_priority);
     if (udcm_priority > 100) {
         udcm_priority = 100;
-    } else if (udcm_priority < -1) {
+    } else if (udcm_priority < 0) {
         udcm_priority = 0;
     }
 

orte/mca/oob/ud/oob_ud_component.c

@@ -215,7 +215,7 @@ static mca_oob_t *mca_oob_ud_component_init(int *priority)
     /* set the priority so that we will select this component
      * only if someone directs to do so
      */
-    *priority = -1;
+    *priority = 0;
 
     opal_hash_table_init (&mca_oob_ud_component.ud_peers, 1024);