From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oliver Neukum Subject: Re: [PATCH net v2 2/2] r8152: reset device when tx timeout Date: Tue, 28 Jul 2015 14:14:05 +0200 Message-ID: <1438085645.1787.4.camel@suse.com> References: <1394712342-15778-156-Taiwan-albertk@realtek.com> <1394712342-15778-159-Taiwan-albertk@realtek.com> <1394712342-15778-161-Taiwan-albertk@realtek.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, nic_swsd@realtek.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org To: Hayes Wang Return-path: Received: from mx2.suse.de ([195.135.220.15]:42999 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752085AbbG1MPQ (ORCPT ); Tue, 28 Jul 2015 08:15:16 -0400 In-Reply-To: <1394712342-15778-161-Taiwan-albertk@realtek.com> Sender: netdev-owner@vger.kernel.org List-ID: On Tue, 2015-07-28 at 20:08 +0800, Hayes Wang wrote: > static void rtl8152_tx_timeout(struct net_device *netdev) > { > struct r8152 *tp = netdev_priv(netdev); > - int i; > > netif_warn(tp, tx_err, netdev, "Tx timeout\n"); > - for (i = 0; i < RTL8152_MAX_TX; i++) > - usb_unlink_urb(tp->tx_info[i].urb); > + > + usb_queue_reset_device(tp->intf); > + cancel_delayed_work(&tp->schedule); Sorry to bother you again, but this looks wrong. You want to cancel first. There is no point in running any work before the reset is done. It will undo any progress anyway. Regards Oliver