From owner-svn-src-all@FreeBSD.ORG  Tue Dec 21 09:31:49 2010
Return-Path: <owner-svn-src-all@FreeBSD.ORG>
Delivered-To: svn-src-all@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 213391065670;
	Tue, 21 Dec 2010 09:31:49 +0000 (UTC)
	(envelope-from thompsa@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c])
	by mx1.freebsd.org (Postfix) with ESMTP id 0F7FC8FC08;
	Tue, 21 Dec 2010 09:31:49 +0000 (UTC)
Received: from svn.freebsd.org (localhost [127.0.0.1])
	by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id oBL9VmfW047106;
	Tue, 21 Dec 2010 09:31:48 GMT (envelope-from thompsa@svn.freebsd.org)
Received: (from thompsa@localhost)
	by svn.freebsd.org (8.14.3/8.14.3/Submit) id oBL9Vm1t047104;
	Tue, 21 Dec 2010 09:31:48 GMT (envelope-from thompsa@svn.freebsd.org)
Message-Id: <201012210931.oBL9Vm1t047104@svn.freebsd.org>
From: Andrew Thompson <thompsa@FreeBSD.org>
Date: Tue, 21 Dec 2010 09:31:48 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
	svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org
X-SVN-Group: stable-8
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Cc: 
Subject: svn commit: r216611 - stable/8/sys/kern
X-BeenThere: svn-src-all@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: "SVN commit messages for the entire src tree \(except for &quot;
	user&quot; and &quot; projects&quot; \)" <svn-src-all.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-all>,
	<mailto:svn-src-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-all>
List-Post: <mailto:svn-src-all@freebsd.org>
List-Help: <mailto:svn-src-all-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-all>,
	<mailto:svn-src-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 21 Dec 2010 09:31:49 -0000

Author: thompsa
Date: Tue Dec 21 09:31:48 2010
New Revision: 216611
URL: http://svn.freebsd.org/changeset/base/216611

Log:
  MFC r216371:
   Fix race in devfs by using LIST_FIRST() instead of
   LIST_FOREACH_SAFE() when freeing the devfs private
   data entries.
  
  Approved by:	re (kib)

Modified:
  stable/8/sys/kern/kern_conf.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/kern/kern_conf.c
==============================================================================
--- stable/8/sys/kern/kern_conf.c	Tue Dec 21 09:16:42 2010	(r216610)
+++ stable/8/sys/kern/kern_conf.c	Tue Dec 21 09:31:48 2010	(r216611)
@@ -871,7 +871,7 @@ static void
 destroy_devl(struct cdev *dev)
 {
 	struct cdevsw *csw;
-	struct cdev_privdata *p, *p1;
+	struct cdev_privdata *p;
 
 	mtx_assert(&devmtx, MA_OWNED);
 	KASSERT(dev->si_flags & SI_NAMED,
@@ -919,7 +919,7 @@ destroy_devl(struct cdev *dev)
 	dev_unlock();
 	notify_destroy(dev);
 	mtx_lock(&cdevpriv_mtx);
-	LIST_FOREACH_SAFE(p, &cdev2priv(dev)->cdp_fdpriv, cdpd_list, p1) {
+	while ((p = LIST_FIRST(&cdev2priv(dev)->cdp_fdpriv)) != NULL) {
 		devfs_destroy_cdevpriv(p);
 		mtx_lock(&cdevpriv_mtx);
 	}