[PATCH 14/15] mm/swap: fix the comment of get_kernel_pages

[Miaohe Lin]

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