Adapatation layer unicast list entry free update

Added new parameter for reject fragmented buffer unnesessary free.

Change-Id: Ifa5bd09ea7759aa4fb942d59d7d5d273e85ff4e9

Author: Juha Heiskanen

source/6LoWPAN/adaptation_interface.c

@@ -328,10 +328,14 @@ static void lowpan_list_entry_free(fragmenter_tx_list_t *list, fragmenter_tx_ent
     ns_dyn_mem_free(entry);
 }
 
-static void lowpan_list_free(fragmenter_tx_list_t *list)
+static void lowpan_list_free(fragmenter_tx_list_t *list, bool fragment_buf_free)
 {
     while (!ns_list_is_empty(list)) {
         fragmenter_tx_entry_t *entry = ns_list_get_first(list);
+        if (!fragment_buf_free) {
+            //We can't free this pointer becuase it must be until interface is deleted
+            entry->fragmenter_buf = NULL;
+        }
         lowpan_list_entry_free(list, entry);
     }
 }
@@ -388,11 +392,11 @@ int8_t lowpan_adaptation_interface_free(int8_t interface_id)
 
     ns_list_remove(&fragmenter_interface_list, interface_ptr);
     //free active tx process
-    lowpan_list_free(&interface_ptr->activeUnicastList);
+    lowpan_list_free(&interface_ptr->activeUnicastList, false);
     lowpan_active_buffer_state_reset(&interface_ptr->active_broadcast_tx_buf);
 
     //Free Indirect entry
-    lowpan_list_free(&interface_ptr->indirect_tx_queue);
+    lowpan_list_free(&interface_ptr->indirect_tx_queue, true);
 
     buffer_free_list(&interface_ptr->directTxQueue);
 
@@ -413,13 +417,13 @@ int8_t lowpan_adaptation_interface_reset(int8_t interface_id)
     }
 
     //free active tx process
-    lowpan_list_free(&interface_ptr->activeUnicastList);
+    lowpan_list_free(&interface_ptr->activeUnicastList, false);
     lowpan_active_buffer_state_reset(&interface_ptr->active_broadcast_tx_buf);
     //Clean fragmented message flag
     interface_ptr->fragmenter_active = false;
 
     //Free Indirect entry
-    lowpan_list_free(&interface_ptr->indirect_tx_queue);
+    lowpan_list_free(&interface_ptr->indirect_tx_queue, true);
 
     buffer_free_list(&interface_ptr->directTxQueue);