From patchwork Fri Oct 30 02:46:55 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Chen X-Patchwork-Id: 316527 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=-11.2 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_SANE_1 autolearn=ham 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 3D735C2D0A3 for ; Fri, 30 Oct 2020 02:48:42 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 376F7206ED for ; Fri, 30 Oct 2020 02:48:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 376F7206ED Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:52962 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kYKT2-0004iK-2J for qemu-devel@archiver.kernel.org; Thu, 29 Oct 2020 22:48:40 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43352) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kYKRc-0003sV-0p; Thu, 29 Oct 2020 22:47:12 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:2370) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kYKRZ-0002YO-OA; Thu, 29 Oct 2020 22:47:11 -0400 Received: from DGGEMS401-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4CMmtL2Czgz15Nmp; Fri, 30 Oct 2020 10:47:06 +0800 (CST) Received: from [10.174.187.138] (10.174.187.138) by DGGEMS401-HUB.china.huawei.com (10.3.19.201) with Microsoft SMTP Server id 14.3.487.0; Fri, 30 Oct 2020 10:46:55 +0800 Message-ID: <5F9B7E9F.8050004@huawei.com> Date: Fri, 30 Oct 2020 10:46:55 +0800 From: AlexChen User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:17.0) Gecko/20130509 Thunderbird/17.0.6 MIME-Version: 1.0 To: Subject: [PATCH] net/l2tpv3: Remove redundant check in net_init_l2tpv3() X-Originating-IP: [10.174.187.138] X-CFilter-Loop: Reflected Received-SPF: pass client-ip=45.249.212.190; envelope-from=alex.chen@huawei.com; helo=szxga04-in.huawei.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/29 20:41:14 X-ACL-Warn: Detected OS = Linux 3.1-3.10 [fuzzy] X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-trivial@nongnu.org, zhengchuan@huawei.com, QEMU , zhang.zhanghailiang@huawei.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The result has been checked to be NULL before, it cannot be NULL here, so the check is redundant. Remove it. Reported-by: Euler Robot Signed-off-by: AlexChen --- net/l2tpv3.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/net/l2tpv3.c b/net/l2tpv3.c index 55fea17c0f..e4d4218db6 100644 --- a/net/l2tpv3.c +++ b/net/l2tpv3.c @@ -655,9 +655,8 @@ int net_init_l2tpv3(const Netdev *netdev, error_setg(errp, "could not bind socket err=%i", errno); goto outerr; } - if (result) { - freeaddrinfo(result); - } + + freeaddrinfo(result); memset(&hints, 0, sizeof(hints)); @@ -686,9 +685,7 @@ int net_init_l2tpv3(const Netdev *netdev, memcpy(s->dgram_dst, result->ai_addr, result->ai_addrlen); s->dst_size = result->ai_addrlen; - if (result) { - freeaddrinfo(result); - } + freeaddrinfo(result); if (l2tpv3->has_counter && l2tpv3->counter) { s->has_counter = true;