sin_list
struct sin_list *sin_iter;
struct sin_list *sin_temp;
LIST_HEAD(sin_list);
struct sin_list *entry = kzalloc_obj(*entry, GFP_ATOMIC);
list_add_tail(&entry->list, &sin_list);
list_for_each_entry_safe(sin_iter, sin_temp, &sin_list, list) {