From patchwork Sat Oct 22 11:37:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yang Yingliang X-Patchwork-Id: 13015931 X-Patchwork-Delegate: kuba@kernel.org 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 9882BC433FE for ; Sat, 22 Oct 2022 11:42:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229679AbiJVLmY (ORCPT ); Sat, 22 Oct 2022 07:42:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55240 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230175AbiJVLmJ (ORCPT ); Sat, 22 Oct 2022 07:42:09 -0400 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B729C55A5 for ; Sat, 22 Oct 2022 04:38:08 -0700 (PDT) Received: from dggpemm500022.china.huawei.com (unknown [172.30.72.54]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4MvfNG5xJZz15Lxb; Sat, 22 Oct 2022 19:33:18 +0800 (CST) Received: from dggpemm500007.china.huawei.com (7.185.36.183) by dggpemm500022.china.huawei.com (7.185.36.162) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Sat, 22 Oct 2022 19:38:06 +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; Sat, 22 Oct 2022 19:38:06 +0800 From: Yang Yingliang To: CC: , , Subject: [PATCH net] net: ehea: fix possible memory leak in ehea_register_port() Date: Sat, 22 Oct 2022 19:37:22 +0800 Message-ID: <20221022113722.3409846-1-yangyingliang@huawei.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.175.103.91] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To dggpemm500007.china.huawei.com (7.185.36.183) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org dev_set_name() in ehea_register_port() allocates memory for name, it need be freed when of_device_register() fails, call put_device() to give up the reference that hold in device_initialize(), so that it can be freed in kobject_cleanup() when the refcount hit to 0. Signed-off-by: Yang Yingliang --- drivers/net/ethernet/ibm/ehea/ehea_main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/ibm/ehea/ehea_main.c b/drivers/net/ethernet/ibm/ehea/ehea_main.c index 294bdbbeacc3..b4aff59b3eb4 100644 --- a/drivers/net/ethernet/ibm/ehea/ehea_main.c +++ b/drivers/net/ethernet/ibm/ehea/ehea_main.c @@ -2900,6 +2900,7 @@ static struct device *ehea_register_port(struct ehea_port *port, ret = of_device_register(&port->ofdev); if (ret) { pr_err("failed to register device. ret=%d\n", ret); + put_device(&port->ofdev.dev); goto out; }