From patchwork Wed Nov 9 09:24:21 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yang Yingliang X-Patchwork-Id: 13037283 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 88CB4C4332F for ; Wed, 9 Nov 2022 09:25:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229801AbiKIJZs (ORCPT ); Wed, 9 Nov 2022 04:25:48 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60900 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229541AbiKIJZq (ORCPT ); Wed, 9 Nov 2022 04:25:46 -0500 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E12A8140F2 for ; Wed, 9 Nov 2022 01:25:45 -0800 (PST) Received: from dggpemm500024.china.huawei.com (unknown [172.30.72.53]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4N6fhT4sWSz15MVR; Wed, 9 Nov 2022 17:25:29 +0800 (CST) Received: from dggpemm500007.china.huawei.com (7.185.36.183) by dggpemm500024.china.huawei.com (7.185.36.203) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Wed, 9 Nov 2022 17:25:41 +0800 Received: from huawei.com (10.175.103.91) by dggpemm500007.china.huawei.com (7.185.36.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Wed, 9 Nov 2022 17:25:41 +0800 From: Yang Yingliang To: , CC: , , , , , Subject: [PATCH] scsi: iscsi: fix possible memory leak when transport_register_device() fails Date: Wed, 9 Nov 2022 17:24:21 +0800 Message-ID: <20221109092421.3111613-1-yangyingliang@huawei.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.175.103.91] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggpemm500007.china.huawei.com (7.185.36.183) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org If transport_register_device() fails, transport_destroy_device() should be called to release the memory allocated in transport_setup_device(). Fixes: 0896b7523026 ("[SCSI] open-iscsi/linux-iscsi-5 Initiator: Transport class update for iSCSI") Signed-off-by: Yang Yingliang --- drivers/scsi/scsi_transport_iscsi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index cd3db9684e52..88add31a56e3 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -2085,6 +2085,7 @@ int iscsi_add_session(struct iscsi_cls_session *session, unsigned int target_id) return 0; release_dev: + transport_destroy_device(&session->dev); device_del(&session->dev); release_ida: if (session->ida_used) @@ -2462,6 +2463,7 @@ int iscsi_add_conn(struct iscsi_cls_conn *conn) if (err) { iscsi_cls_session_printk(KERN_ERR, session, "could not register transport's dev\n"); + transport_destroy_device(&conn->dev); device_del(&conn->dev); return err; }