From c7c7520a95edcfa85f8f373ece101281dd195fe6 Mon Sep 17 00:00:00 2001
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Fri, 12 Dec 2008 11:10:10 +0000
Subject: [PATCH] Do not leak defs_de_interlock on error.

Another pointy hat for my collection.
---
 sys/fs/devfs/devfs_vnops.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sys/fs/devfs/devfs_vnops.c b/sys/fs/devfs/devfs_vnops.c
index e454a5e437a..e0672dac047 100644
--- a/sys/fs/devfs/devfs_vnops.c
+++ b/sys/fs/devfs/devfs_vnops.c
@@ -241,8 +241,10 @@ devfs_vptocnp(struct vop_vptocnp_args *ap)
 		mtx_unlock(&devfs_de_interlock);
 		vholdl(*dvp);
 		VI_UNLOCK(*dvp);
-	} else
+	} else {
+		mtx_unlock(&devfs_de_interlock);
 		error = ENOENT;
+	}
 finished:
 	sx_xunlock(&dmp->dm_lock);
 	return (error);