60    if( list_data == NULL )  in linked_list_init()
68    if( tmp_list == NULL )  in linked_list_init()
74    tmp_list->p_head = NULL;  in linked_list_init()
75    tmp_list->p_tail = NULL;  in linked_list_init()
89    if( list_data == NULL )  in linked_list_destroy()
100    *list_data = NULL;  in linked_list_destroy()
113    if( list_data == NULL )  in linked_list_add()
119    if( data_obj == NULL )  in linked_list_add()
127    if( elem == NULL )  in linked_list_add()
135    elem->next = NULL;  in linked_list_add()
136    elem->prev = NULL;  in linked_list_add()
145    if( tmp != NULL )  in linked_list_add()
165    if( list_data == NULL )  in linked_list_remove()
171    if( data_obj == NULL )  in linked_list_remove()
178    if( p_list->p_tail == NULL )  in linked_list_remove()
188    if( p_list->p_tail != NULL )  in linked_list_remove()
190       p_list->p_tail->next = NULL;  in linked_list_remove()
213    if( list_data == NULL )  in linked_list_empty()
221       return p_list->p_head == NULL ? 1 : 0;  in linked_list_empty()
232    if( list_data == NULL )  in linked_list_flush()
241    while( p_list->p_head != NULL )  in linked_list_flush()
246       if( p_list->p_head->dealloc_func != NULL )  in linked_list_flush()
257    p_list->p_tail = NULL;  in linked_list_flush()
272    if( list_data == NULL || NULL == equal )  in linked_list_search()
280    if( p_list->p_tail == NULL )  in linked_list_search()
287    if (NULL != data_p) {  in linked_list_search()
288      *data_p = NULL;  in linked_list_search()
291    while (NULL != tmp) {  in linked_list_search()
293        if (NULL != data_p) {  in linked_list_search()
298          if (NULL == tmp->prev) {  in linked_list_search()
304          if (NULL == tmp->next) {  in linked_list_search()
310          tmp->prev = tmp->next = NULL;  in linked_list_search()
314          if (NULL == data_p && NULL != tmp->dealloc_func) {  in linked_list_search()
320        tmp = NULL;  in linked_list_search()