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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 73C30C54EBE for ; Mon, 16 Jan 2023 17:06:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231338AbjAPRGr (ORCPT ); Mon, 16 Jan 2023 12:06:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60494 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230304AbjAPRGT (ORCPT ); Mon, 16 Jan 2023 12:06:19 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2B25242BEF for ; Mon, 16 Jan 2023 08:47:31 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 9870461058 for ; Mon, 16 Jan 2023 16:47:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A84E1C433EF; Mon, 16 Jan 2023 16:47:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1673887650; bh=k35NYxHpplb0pOOa0pMIaniTE9cto4F2u/yg4at+vYQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kOR/Y7M+P9eW2WPjv/iRoZQ24Z/bVKPjNmKVzs3k12YIsUTD2LeUBCdpq/fEwh2if Z50P4fxIxotUFlUMZXKc5wgBd9edoRnUQfHmIDcFM1K4XBaHCO0RYspetDfj2VOOej pQWjs5Gj3hHKkaJzifemZJOQMSZqsZJB5io5+bwA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Chen Zhongjin , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 4.19 200/521] scsi: fcoe: Fix transport not deattached when fcoe_if_init() fails Date: Mon, 16 Jan 2023 16:47:42 +0100 Message-Id: <20230116154856.051758223@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230116154847.246743274@linuxfoundation.org> References: <20230116154847.246743274@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Chen Zhongjin [ Upstream commit 4155658cee394b22b24c6d64e49247bf26d95b92 ] fcoe_init() calls fcoe_transport_attach(&fcoe_sw_transport), but when fcoe_if_init() fails, &fcoe_sw_transport is not detached and leaves freed &fcoe_sw_transport on fcoe_transports list. This causes panic when reinserting module. BUG: unable to handle page fault for address: fffffbfff82e2213 RIP: 0010:fcoe_transport_attach+0xe1/0x230 [libfcoe] Call Trace: do_one_initcall+0xd0/0x4e0 load_module+0x5eee/0x7210 ... Fixes: 78a582463c1e ("[SCSI] fcoe: convert fcoe.ko to become an fcoe transport provider driver") Signed-off-by: Chen Zhongjin Link: https://lore.kernel.org/r/20221115092442.133088-1-chenzhongjin@huawei.com Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/fcoe/fcoe.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index 6768b2e8148a..c5c4805435f6 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -2519,6 +2519,7 @@ static int __init fcoe_init(void) out_free: mutex_unlock(&fcoe_config_mutex); + fcoe_transport_detach(&fcoe_sw_transport); out_destroy: destroy_workqueue(fcoe_wq); return rc; -- 2.35.1