From patchwork Thu Aug 31 14:13:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 13371636 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AF07FC83F01 for ; Thu, 31 Aug 2023 14:14:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=t5o3PX5vLRTzQYBNR5wYW4OBy3PNFlQ+qw2iHnaAIIg=; b=gyG9TCszrnPLA8aCxGI734oGQI wc92FtkitwHo+MHs8DUiJlbPaywWJ7wBSVQlp/2VG9T+vX7tqUPdzPnsnixL1G7PYIa+qfHvx4K0v CfHkoQ3DNECWrJECwd0PFkPea6ZH+gKIQhEJqPDzzi7RhmtJpFsRS22sT8Ru0fYa99KhtpOcY+uhn 0b9kJQ3FrnrYcljQGo0kA5dasiGqAi2eydIstkW9rcGKjsCMemnjCZsvRtdUmmaW60pgVxAnNVs0Q +Zx7jtHljcr/wYj01qIdgP/hnxj1Et0GAiIz0LI2g4aY3kOsIii7cFMm/3thDFCgyXIcD8z+64CeL WlfFE+Mw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qbiR8-00FQKi-13; Thu, 31 Aug 2023 14:14:18 +0000 Received: from szxga08-in.huawei.com ([45.249.212.255]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qbiQu-00FQG5-0R; Thu, 31 Aug 2023 14:14:05 +0000 Received: from kwepemi500008.china.huawei.com (unknown [172.30.72.56]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4Rc35J0JTxz1L9Rm; Thu, 31 Aug 2023 22:12:20 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemi500008.china.huawei.com (7.221.188.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Thu, 31 Aug 2023 22:13:59 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , , , , , Yogesh Ashok Powar , Frank Huang , Kiran Divekar CC: Subject: [PATCH net 2/3] mwifiex: debugfs: Fix the NULL vs IS_ERR() bug for debugfs_create_dir() Date: Thu, 31 Aug 2023 22:13:46 +0800 Message-ID: <20230831141347.3166988-3-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230831141347.3166988-1-ruanjinjie@huawei.com> References: <20230831141347.3166988-1-ruanjinjie@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemi500008.china.huawei.com (7.221.188.139) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230831_071404_372636_D2505F58 X-CRM114-Status: UNSURE ( 9.48 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Since debugfs_create_dir() returns ERR_PTR and never return NULL, So use IS_ERR() to check it instead of checking NULL. Fixes: 5e6e3a92b9a4 ("wireless: mwifiex: initial commit for Marvell mwifiex driver") Signed-off-by: Jinjie Ruan --- drivers/net/wireless/marvell/mwifiex/debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/marvell/mwifiex/debugfs.c b/drivers/net/wireless/marvell/mwifiex/debugfs.c index f9c9fec7c792..a1e074b6d539 100644 --- a/drivers/net/wireless/marvell/mwifiex/debugfs.c +++ b/drivers/net/wireless/marvell/mwifiex/debugfs.c @@ -970,7 +970,7 @@ mwifiex_dev_debugfs_init(struct mwifiex_private *priv) priv->dfs_dev_dir = debugfs_create_dir(priv->netdev->name, mwifiex_dfs_dir); - if (!priv->dfs_dev_dir) + if (IS_ERR(priv->dfs_dev_dir)) return; MWIFIEX_DFS_ADD_FILE(info);