Fixed memory leaks

source/ubinstall-gtk-language.c

@@ -100,7 +100,7 @@ gboolean yon_locale_window_set_locales(struct locales_struct *data){
     if(!yon_char_is_empty(data->lang)) free(data->lang);
     if(!yon_char_is_empty(data->locale)) free(data->locale);
     if(!yon_char_is_empty(data->territory)) free(data->territory);
-    if(!yon_char_is_empty(data->lang)) free(data);
+    if(data) free(data);
     return G_SOURCE_REMOVE;
 }