nfsd4: fix setlease error return

This actually makes a difference in the 4.1 case, since we use the
status to decide what reason to give the client for the delegation
refusal (see nfsd4_open_deleg_none_ext), and in theory a client might
choose suboptimal behavior if we give the wrong answer.

Reported-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 1cb6211..1852f53 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3028,7 +3028,7 @@
 	if (status) {
 		list_del_init(&dp->dl_perclnt);
 		locks_free_lock(fl);
-		return -ENOMEM;
+		return status;
 	}
 	fp->fi_lease = fl;
 	fp->fi_deleg_file = get_file(fl->fl_file);