From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0EE31C432C3 for ; Thu, 14 Nov 2019 17:01:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DEE26206F4 for ; Thu, 14 Nov 2019 17:01:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726767AbfKNRBS (ORCPT ); Thu, 14 Nov 2019 12:01:18 -0500 Received: from verein.lst.de ([213.95.11.211]:40603 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726605AbfKNRBS (ORCPT ); Thu, 14 Nov 2019 12:01:18 -0500 Received: by verein.lst.de (Postfix, from userid 2407) id 173BF68B05; Thu, 14 Nov 2019 18:01:16 +0100 (CET) Date: Thu, 14 Nov 2019 18:01:15 +0100 From: Christoph Hellwig To: Hannes Reinecke Cc: "Martin K. Petersen" , Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org Subject: Re: [PATCH] scsi_dh_rdac: avoid crash during rescan Message-ID: <20191114170115.GA4359@lst.de> References: <20191111104522.99531-1-hare@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191111104522.99531-1-hare@suse.de> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org On Mon, Nov 11, 2019 at 11:45:22AM +0100, Hannes Reinecke wrote: > During rescanning the device might already have been removed, so > we should drop the BUG_ON and just ignore the non-existing device. The device is also added to the list before sdev is set, which is rather silly, so that might be worth fixing as well.