From mboxrd@z Thu Jan 1 00:00:00 1970 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,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 A4DA1C49EA2 for ; Wed, 16 Jun 2021 07:27:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 858B46044F for ; Wed, 16 Jun 2021 07:27:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231733AbhFPH3N (ORCPT ); Wed, 16 Jun 2021 03:29:13 -0400 Received: from szxga08-in.huawei.com ([45.249.212.255]:7294 "EHLO szxga08-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231453AbhFPH3A (ORCPT ); Wed, 16 Jun 2021 03:29:00 -0400 Received: from dggemv704-chm.china.huawei.com (unknown [172.30.72.57]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4G4c7h4dDRz1BN7F; Wed, 16 Jun 2021 15:21:52 +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, 16 Jun 2021 15:26:53 +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, 16 Jun 2021 15:26:53 +0800 From: Guangbin Huang To: , , , , CC: , , , Subject: [PATCH net-next 04/15] net: cosa: replace comparison to NULL with "!chan->rx_skb" Date: Wed, 16 Jun 2021 15:23:30 +0800 Message-ID: <1623828221-48349-5-git-send-email-huangguangbin2@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1623828221-48349-1-git-send-email-huangguangbin2@huawei.com> References: <1623828221-48349-1-git-send-email-huangguangbin2@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.67.165.24] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To dggemi759-chm.china.huawei.com (10.1.198.145) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Peng Li According to the chackpatch.pl, comparison to NULL could be written "!chan->rx_skb". Signed-off-by: Peng Li Signed-off-by: Guangbin Huang --- drivers/net/wan/cosa.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c index c051c61..7b57233 100644 --- a/drivers/net/wan/cosa.c +++ b/drivers/net/wan/cosa.c @@ -719,7 +719,7 @@ static char *cosa_net_setup_rx(struct channel_data *chan, int size) */ kfree_skb(chan->rx_skb); chan->rx_skb = dev_alloc_skb(size); - if (chan->rx_skb == NULL) { + if (!chan->rx_skb) { pr_notice("%s: Memory squeeze, dropping packet\n", chan->name); chan->netdev->stats.rx_dropped++; return NULL; @@ -783,7 +783,7 @@ static ssize_t cosa_read(struct file *file, return -ERESTARTSYS; chan->rxdata = kmalloc(COSA_MTU, GFP_DMA|GFP_KERNEL); - if (chan->rxdata == NULL) { + if (!chan->rxdata) { mutex_unlock(&chan->rlock); return -ENOMEM; } @@ -861,7 +861,7 @@ static ssize_t cosa_write(struct file *file, /* Allocate the buffer */ kbuf = kmalloc(count, GFP_KERNEL|GFP_DMA); - if (kbuf == NULL) { + if (!kbuf) { up(&chan->wsem); return -ENOMEM; } -- 2.8.1