Don't unregister elements that are not valid

diff --git a/plugins/dhclient.c b/plugins/dhclient.c
index 1802259..3a06e3e 100644 (file)
--- a/plugins/dhclient.c
+++ b/plugins/dhclient.c
@@ -216,9 +216,11 @@ static void dhclient_remove(struct connman_element *element)
        task_list = g_slist_remove(task_list, task);
        g_static_mutex_unlock(&task_mutex);
 
-       connman_element_unregister(task->child);
-       connman_element_unref(task->child);
-       task->child = NULL;
+       if (task->child != NULL) {
+               connman_element_unregister(task->child);
+               connman_element_unref(task->child);
+               task->child = NULL;
+       }
 
        kill_task(task);
 }