memset(buf->vaddr, 0, nr_pages << PAGE_SHIFT);
buf->nr_pages = nr_pages;
- buf->sglist = vzalloc(buf->nr_pages * sizeof(*buf->sglist));
+ buf->sglist = vzalloc(array_size(sizeof(*buf->sglist), buf->nr_pages));
if (NULL == buf->sglist)
goto vzalloc_err;