If no pages were pinned, 0 is returned in fact. Fix the corresponding comment. Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx> --- mm/swap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/swap.c b/mm/swap.c index 6d2c37f781f8..236b37663a1a 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -168,8 +168,8 @@ EXPORT_SYMBOL(put_pages_list); * * Returns number of pages pinned. This may be fewer than the number * requested. If nr_pages is 0 or negative, returns 0. If no pages - * were pinned, returns -errno. Each page returned must be released - * with a put_page() call when it is finished with. + * were pinned, returns 0. Each page returned must be released with + * a put_page() call when it is finished with. */ int get_kernel_pages(const struct kvec *kiov, int nr_segs, int write, struct page **pages) -- 2.23.0
