From patchwork Fri Jul 17 09:01:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "liujian (CE)" X-Patchwork-Id: 11669489 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6D2B613B1 for ; Fri, 17 Jul 2020 08:17:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5DB1120768 for ; Fri, 17 Jul 2020 08:17:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726250AbgGQIRw (ORCPT ); Fri, 17 Jul 2020 04:17:52 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:39734 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726113AbgGQIRv (ORCPT ); Fri, 17 Jul 2020 04:17:51 -0400 Received: from DGGEMS414-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id A187AC35BC1808A021F8; Fri, 17 Jul 2020 16:17:48 +0800 (CST) Received: from huawei.com (10.175.101.6) by DGGEMS414-HUB.china.huawei.com (10.3.19.214) with Microsoft SMTP Server id 14.3.487.0; Fri, 17 Jul 2020 16:17:44 +0800 From: Liu Jian To: , , , , , , , Subject: [PATCH net-next] ieee802154: fix one possible memleak in adf7242_probe Date: Fri, 17 Jul 2020 17:01:21 +0800 Message-ID: <20200717090121.2143-1-liujian56@huawei.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-CFilter-Loop: Reflected Sender: linux-wpan-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wpan@vger.kernel.org When probe fail, we should destroy the workqueue. Fixes: 2795e8c25161 ("net: ieee802154: fix a potential NULL pointer dereference") Signed-off-by: Liu Jian Acked-by: Michael Hennerich --- drivers/net/ieee802154/adf7242.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ieee802154/adf7242.c b/drivers/net/ieee802154/adf7242.c index 5a37514e4234..8dbccec6ac86 100644 --- a/drivers/net/ieee802154/adf7242.c +++ b/drivers/net/ieee802154/adf7242.c @@ -1262,7 +1262,7 @@ static int adf7242_probe(struct spi_device *spi) WQ_MEM_RECLAIM); if (unlikely(!lp->wqueue)) { ret = -ENOMEM; - goto err_hw_init; + goto err_alloc_wq; } ret = adf7242_hw_init(lp); @@ -1294,6 +1294,8 @@ static int adf7242_probe(struct spi_device *spi) return ret; err_hw_init: + destroy_workqueue(lp->wqueue); +err_alloc_wq: mutex_destroy(&lp->bmux); ieee802154_free_hw(lp->hw);