diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
index 6165c41fcf62..ff4d271baff5 100644
--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c
+++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
@@ -392,7 +392,7 @@ ff_layout_get_mirror_ds(struct pnfs_layout_hdr *lo,
  * device error so that the server can tell which class of I/O the client
  * was unable to send to the mirror.
  *
- * Returns a pointer to a connected DS object on success or NULL on failure.
+ * Returns a pointer to a connected DS object on success or an ERR_PTR value on failure.
  */
 struct nfs4_pnfs_ds *
 nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg,