diff --git a/fs/nilfs2/recovery.c b/fs/nilfs2/recovery.c
index f5d9c3f954aeecb4ed8afd9805f59ac8e4bead70..83e3d8c61a01c8244d8bb01d8f10de0ad909792a 100644
--- a/fs/nilfs2/recovery.c
+++ b/fs/nilfs2/recovery.c
@@ -804,6 +804,8 @@ int nilfs_salvage_orphan_logs(struct the_nilfs *nilfs,
  * %-EINVAL - No valid segment found
  *
  * %-EIO - I/O error
+ *
+ * %-ENOMEM - Insufficient memory available.
  */
 int nilfs_search_super_root(struct the_nilfs *nilfs,
 			    struct nilfs_recovery_info *ri)