From patchwork Tue Nov 10 14:46:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wang Hai X-Patchwork-Id: 323617 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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 196DDC4742C for ; Tue, 10 Nov 2020 14:43:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BEDE5206B2 for ; Tue, 10 Nov 2020 14:43:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731962AbgKJOnX (ORCPT ); Tue, 10 Nov 2020 09:43:23 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:7626 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730231AbgKJOnU (ORCPT ); Tue, 10 Nov 2020 09:43:20 -0500 Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4CVrFM01VvzLwLZ; Tue, 10 Nov 2020 22:43:03 +0800 (CST) Received: from huawei.com (10.175.113.133) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.487.0; Tue, 10 Nov 2020 22:43:08 +0800 From: Wang Hai To: , , CC: , Subject: [PATCH net] cosa: Add missing kfree in error path of cosa_write Date: Tue, 10 Nov 2020 22:46:14 +0800 Message-ID: <20201110144614.43194-1-wanghai38@huawei.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [10.175.113.133] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org If memory allocation for 'kbuf' succeed, cosa_write() doesn't have a corresponding kfree() in exception handling. Thus add kfree() for this function implementation. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: Hulk Robot Signed-off-by: Wang Hai --- drivers/net/wan/cosa.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c index f8aed0696d77..2369ca250cd6 100644 --- a/drivers/net/wan/cosa.c +++ b/drivers/net/wan/cosa.c @@ -889,6 +889,7 @@ static ssize_t cosa_write(struct file *file, chan->tx_status = 1; spin_unlock_irqrestore(&cosa->lock, flags); up(&chan->wsem); + kfree(kbuf); return -ERESTARTSYS; } }