From patchwork Thu Sep 30 23:34:30 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tilman Schmidt X-Patchwork-Id: 66291 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 180FDB6F07 for ; Fri, 1 Oct 2010 10:33:06 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754517Ab0JAAa7 (ORCPT ); Thu, 30 Sep 2010 20:30:59 -0400 Received: from gimli.pxnet.com ([89.1.7.7]:34819 "EHLO mail.pxnet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754398Ab0JAAa6 (ORCPT ); Thu, 30 Sep 2010 20:30:58 -0400 X-Greylist: delayed 3367 seconds by postgrey-1.27 at vger.kernel.org; Thu, 30 Sep 2010 20:30:56 EDT Received: from xenon.ts.pxnet.com (pD9E82CAE.dip.t-dialin.net [217.232.44.174]) (user=ts author=<> mech=DIGEST-MD5 bits=0) by mail.pxnet.com (8.13.8/8.13.8) with ESMTP id o8UNYdhf031577 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Fri, 1 Oct 2010 01:34:44 +0200 Received: by xenon.ts.pxnet.com (Postfix, from userid 1000) id C51AC4016E; Fri, 1 Oct 2010 01:34:30 +0200 (CEST) From: Tilman Schmidt To: Karsten Keil , David Miller CC: Hansjoerg Lipp , Karsten Keil , i4ldeveloper@listserv.isdn4linux.de, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Message-ID: <20100930-patch-gigaset-01.tilman@imap.cc> In-Reply-To: <20100930-patch-gigaset-00.tilman@imap.cc> References: <20100930-patch-gigaset-00.tilman@imap.cc> Subject: [PATCH 1/9] isdn/gigaset: bas_gigaset locking fix Date: Fri, 1 Oct 2010 01:34:30 +0200 (CEST) X-Spam-Score: -1.983 () AWL,BAYES_00,RDNS_DYNAMIC X-Scanned-By: MIMEDefang 2.70 on 89.1.7.7 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Unlock cs->lock before calling error_hangup() which is marked "cs->lock must not be held". Signed-off-by: Tilman Schmidt CC: stable --- drivers/isdn/gigaset/bas-gigaset.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c index 707d9c9..e143050 100644 --- a/drivers/isdn/gigaset/bas-gigaset.c +++ b/drivers/isdn/gigaset/bas-gigaset.c @@ -1598,13 +1598,13 @@ static int gigaset_init_bchannel(struct bc_state *bcs) ret = starturbs(bcs); if (ret < 0) { + spin_unlock_irqrestore(&cs->lock, flags); dev_err(cs->dev, "could not start isochronous I/O for channel B%d: %s\n", bcs->channel + 1, ret == -EFAULT ? "null URB" : get_usb_rcmsg(ret)); if (ret != -ENODEV) error_hangup(bcs); - spin_unlock_irqrestore(&cs->lock, flags); return ret; } @@ -1614,11 +1614,11 @@ static int gigaset_init_bchannel(struct bc_state *bcs) dev_err(cs->dev, "could not open channel B%d\n", bcs->channel + 1); stopurbs(bcs->hw.bas); - if (ret != -ENODEV) - error_hangup(bcs); } spin_unlock_irqrestore(&cs->lock, flags); + if (ret < 0 && ret != -ENODEV) + error_hangup(bcs); return ret; }