From owner-svn-src-head@FreeBSD.ORG  Tue Nov  4 18:53:33 2008
Return-Path: <owner-svn-src-head@FreeBSD.ORG>
Delivered-To: svn-src-head@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id C80E91065687;
	Tue,  4 Nov 2008 18:53:33 +0000 (UTC) (envelope-from jhb@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c])
	by mx1.freebsd.org (Postfix) with ESMTP id B647E8FC2F;
	Tue,  4 Nov 2008 18:53:33 +0000 (UTC) (envelope-from jhb@FreeBSD.org)
Received: from svn.freebsd.org (localhost [127.0.0.1])
	by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id mA4IrXmB004782;
	Tue, 4 Nov 2008 18:53:33 GMT (envelope-from jhb@svn.freebsd.org)
Received: (from jhb@localhost)
	by svn.freebsd.org (8.14.3/8.14.3/Submit) id mA4IrXIV004781;
	Tue, 4 Nov 2008 18:53:33 GMT (envelope-from jhb@svn.freebsd.org)
Message-Id: <200811041853.mA4IrXIV004781@svn.freebsd.org>
From: John Baldwin <jhb@FreeBSD.org>
Date: Tue, 4 Nov 2008 18:53:33 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
	svn-src-head@freebsd.org
X-SVN-Group: head
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Cc: 
Subject: svn commit: r184649 - head/sys/compat/linprocfs
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
	<svn-src-head.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 04 Nov 2008 18:53:33 -0000

Author: jhb
Date: Tue Nov  4 18:53:33 2008
New Revision: 184649
URL: http://svn.freebsd.org/changeset/base/184649

Log:
  Don't leak a reference on the /compat/linux vnode everytime
  the linprocfs 'mtab' file is read.
  
  MFC after:	1 month

Modified:
  head/sys/compat/linprocfs/linprocfs.c

Modified: head/sys/compat/linprocfs/linprocfs.c
==============================================================================
--- head/sys/compat/linprocfs/linprocfs.c	Tue Nov  4 18:38:48 2008	(r184648)
+++ head/sys/compat/linprocfs/linprocfs.c	Tue Nov  4 18:53:33 2008	(r184649)
@@ -318,11 +318,13 @@ linprocfs_domtab(PFS_FILL_ARGS)
 	NDINIT(&nd, LOOKUP, FOLLOW | MPSAFE, UIO_SYSSPACE, linux_emul_path, td);
 	flep = NULL;
 	error = namei(&nd);
-	VFS_UNLOCK_GIANT(NDHASGIANT(&nd));
-	if (error != 0 || vn_fullpath(td, nd.ni_vp, &dlep, &flep) != 0)
-		lep = linux_emul_path;
-	else
-		lep = dlep;
+	lep = linux_emul_path;
+	if (error == 0) {
+		if (vn_fullpath(td, nd.ni_vp, &dlep, &flep) != 0)
+			lep = dlep;
+		vrele(nd.ni_vp);
+		VFS_UNLOCK_GIANT(NDHASGIANT(&nd));
+	}
 	lep_len = strlen(lep);
 
 	mtx_lock(&mountlist_mtx);