From patchwork Wed Jun 9 09:39:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "huangguangbin \(A\)" X-Patchwork-Id: 458460 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT 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 16B86C48BCD for ; Wed, 9 Jun 2021 09:43:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 01CCD6136D for ; Wed, 9 Jun 2021 09:43:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238261AbhFIJp2 (ORCPT ); Wed, 9 Jun 2021 05:45:28 -0400 Received: from szxga02-in.huawei.com ([45.249.212.188]:5466 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234148AbhFIJp0 (ORCPT ); Wed, 9 Jun 2021 05:45:26 -0400 Received: from dggemv704-chm.china.huawei.com (unknown [172.30.72.54]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4G0MXn5gg6zZfXZ; Wed, 9 Jun 2021 17:40:25 +0800 (CST) Received: from dggemi759-chm.china.huawei.com (10.1.198.145) by dggemv704-chm.china.huawei.com (10.3.19.47) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2176.2; Wed, 9 Jun 2021 17:43:04 +0800 Received: from localhost.localdomain (10.67.165.24) by dggemi759-chm.china.huawei.com (10.1.198.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Wed, 9 Jun 2021 17:43:04 +0800 From: Guangbin Huang To: , , , , CC: , , , Subject: [PATCH net-next 3/9] net: lapbether: move out assignment in if condition Date: Wed, 9 Jun 2021 17:39:49 +0800 Message-ID: <1623231595-33851-4-git-send-email-huangguangbin2@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1623231595-33851-1-git-send-email-huangguangbin2@huawei.com> References: <1623231595-33851-1-git-send-email-huangguangbin2@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.165.24] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggemi759-chm.china.huawei.com (10.1.198.145) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Peng Li Should not use assignment in if condition. Signed-off-by: Peng Li Signed-off-by: Guangbin Huang --- drivers/net/wan/lapbether.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/net/wan/lapbether.c b/drivers/net/wan/lapbether.c index b6aef7b..e5ae043 100644 --- a/drivers/net/wan/lapbether.c +++ b/drivers/net/wan/lapbether.c @@ -116,7 +116,8 @@ static int lapbeth_rcv(struct sk_buff *skb, struct net_device *dev, struct packe if (dev_net(dev) != &init_net) goto drop; - if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL) + skb = skb_share_check(skb, GFP_ATOMIC); + if (!skb) return NET_RX_DROP; if (!pskb_may_pull(skb, 2)) @@ -137,7 +138,8 @@ static int lapbeth_rcv(struct sk_buff *skb, struct net_device *dev, struct packe skb_pull(skb, 2); /* Remove the length bytes */ skb_trim(skb, len); /* Set the length of the data */ - if ((err = lapb_data_received(lapbeth->axdev, skb)) != LAPB_OK) { + err = lapb_data_received(lapbeth->axdev, skb); + if (err != LAPB_OK) { printk(KERN_DEBUG "lapbether: lapb_data_received err - %d\n", err); goto drop_unlock; } @@ -219,7 +221,8 @@ static netdev_tx_t lapbeth_xmit(struct sk_buff *skb, skb_pull(skb, 1); - if ((err = lapb_data_request(dev, skb)) != LAPB_OK) { + err = lapb_data_request(dev, skb); + if (err != LAPB_OK) { pr_err("lapb_data_request error - %d\n", err); goto drop; } @@ -327,7 +330,8 @@ static int lapbeth_open(struct net_device *dev) napi_enable(&lapbeth->napi); - if ((err = lapb_register(dev, &lapbeth_callbacks)) != LAPB_OK) { + err = lapb_register(dev, &lapbeth_callbacks); + if (err != LAPB_OK) { pr_err("lapb_register error: %d\n", err); return -ENODEV; } @@ -348,7 +352,8 @@ static int lapbeth_close(struct net_device *dev) lapbeth->up = false; spin_unlock_bh(&lapbeth->up_lock); - if ((err = lapb_unregister(dev)) != LAPB_OK) + err = lapb_unregister(dev); + if (err != LAPB_OK) pr_err("lapb_unregister error: %d\n", err); napi_disable(&lapbeth->napi);