From 7e1f3053e41c8d598f9afd082922c70c09a654e0 Mon Sep 17 00:00:00 2001
From: asou <asou@openbsd.org>
Date: Tue, 3 Dec 2019 05:03:37 +0000
Subject: fwide() does not unlock if error was occurred.

ok guenther@ and deraadt
---
 lib/libc/stdio/fwide.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'lib/libc')

diff --git a/lib/libc/stdio/fwide.c b/lib/libc/stdio/fwide.c
index 27ca0f8ac59..4b93d598eab 100644
--- a/lib/libc/stdio/fwide.c
+++ b/lib/libc/stdio/fwide.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: fwide.c,v 1.5 2015/08/31 02:53:57 guenther Exp $	*/
+/*	$OpenBSD: fwide.c,v 1.6 2019/12/03 05:03:37 asou Exp $	*/
 /* $NetBSD: fwide.c,v 1.2 2003/01/18 11:29:54 thorpej Exp $ */
 
 /*-
@@ -51,8 +51,10 @@ fwide(FILE *fp, int mode)
 
 	FLOCKFILE(fp);
 	wcio = WCIO_GET(fp);
-	if (!wcio)
+	if (!wcio) {
+		FUNLOCKFILE(fp);
 		return 0; /* XXX */
+	}
 
 	if (wcio->wcio_mode == 0 && mode != 0)
 		wcio->wcio_mode = mode;
-- 
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