Randomize fixed channel when making new parent selection

Author: Mika Tervonen

source/6LoWPAN/ws/ws_bootstrap.c

@@ -2807,6 +2807,10 @@ void ws_bootstrap_network_scan_process(protocol_interface_info_entry_t *cur)
     selected_parent_ptr = ws_bootstrap_candidate_parent_get_best(cur);
 
     if (!selected_parent_ptr) {
+        // Configure LLC for network discovery
+        ws_bootstrap_network_discovery_configure(cur);
+        // randomize new channel and start MAC
+        ws_bootstrap_fhss_activate(cur);
         // Next check will be after one trickle
         cur->bootsrap_state_machine_cnt += cur->ws_info->trickle_params_pan_discovery.Imin + randLIB_get_8bit() % 50;
         tr_info("Making parent selection in %u s", (cur->bootsrap_state_machine_cnt / 10));
@@ -2825,9 +2829,6 @@ void ws_bootstrap_network_scan_process(protocol_interface_info_entry_t *cur)
         //Remove Neighbour and set Link setup back
         ns_list_remove(&cur->ws_info->parent_list_reserved, selected_parent_ptr);
         ns_list_add_to_end(&cur->ws_info->parent_list_free, selected_parent_ptr);
-        // Configure LLC for network discovery
-        ws_bootstrap_network_discovery_configure(cur);
-        ws_bootstrap_fhss_activate(cur);
         goto select_best_candidate;
     }