From c9989a63e9e08ce5601f18723d41620630c38f71 Mon Sep 17 00:00:00 2001
From: deraadt <deraadt@openbsd.org>
Date: Sun, 21 Nov 2021 23:07:11 +0000
Subject: [PATCH] correct the vnd-on-vnd dev_t test, and avoid leaking a cred
 in an obscure condition ok tb

---
 sys/dev/vnd.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sys/dev/vnd.c b/sys/dev/vnd.c
index 94b0da08743..9b7b2cec5ca 100644
--- a/sys/dev/vnd.c
+++ b/sys/dev/vnd.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: vnd.c,v 1.173 2021/11/18 16:57:59 tb Exp $	*/
+/*	$OpenBSD: vnd.c,v 1.174 2021/11/21 23:07:11 deraadt Exp $	*/
 /*	$NetBSD: vnd.c,v 1.26 1996/03/30 23:06:11 christos Exp $	*/
 
 /*
@@ -473,7 +473,7 @@ fail:
 		}
 
 		/* Cannot put a vnd on top of a vnd */
-		if (major(vattr.va_rdev) == major(dev)) {
+		if (major(vattr.va_fsid) == major(dev)) {
 			error = EINVAL;
 			goto fail;
 		}
@@ -491,7 +491,7 @@ fail:
 
 		if ((error = disk_lock(&sc->sc_dk)) != 0) {
 			crfree(cred);
-			return (error);
+			goto fail;
 		}
 
 		/* Set geometry for device. */
-- 
2.20.1