Now, nobody care about the return value of ion_page_pool_add, therefore
we can just make it return void.
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
        __free_pages(page, pool->order);
 }
 
-static int ion_page_pool_add(struct ion_page_pool *pool, struct page *page)
+static void ion_page_pool_add(struct ion_page_pool *pool, struct page *page)
 {
        mutex_lock(&pool->mutex);
        if (PageHighMem(page)) {
                pool->low_count++;
        }
        mutex_unlock(&pool->mutex);
-       return 0;
 }
 
 static struct page *ion_page_pool_remove(struct ion_page_pool *pool, bool high)