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 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 C9678C4321E for ; Mon, 5 Dec 2022 03:42:39 +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-Transfer-Encoding: Content-Type:In-Reply-To:From:References:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Cc:Content-ID:Content-Description:Resent-Date:Resent-From :Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=fxO74JBTUY0b1fIP2VnlR6oWnB1rOrpq2X92ps5lGTA=; b=jhnfJYB6pHoF78K/MB8CQz6Q4e bCDHlN5dAMhaicQjszO1dZf9/jFEIXh0wlSjNMhN5Pf5ivxCoo8MB6m/ICdkSeI79SBWHvtzbcro5 UVRyHM9P4kW6+qUOzQaFSpDpxcPufQQv991l7Pl1JQATBxMxFx6kZ/o0CUk8zklUyalqwgJv4DicU rI94e+YWX9LHNZWHZH3HwMa5FTpPvnjR0JviNPk3mU7Z3SJ4qssZssbRQl6CbARajq9kX2MPvG7Bb 2nnMXtAbCYFvOOLWu1N0JHs29gsm5giXy5Imdp+T8it/3t+7GUrY3bfEWQYLS+06E5jr0Ls9oZps/ Z/LU7vVg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1p22NC-00D5tT-97; Mon, 05 Dec 2022 03:42:30 +0000 Received: from szxga03-in.huawei.com ([45.249.212.189]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1p22N0-00D5ns-3e; Mon, 05 Dec 2022 03:42:19 +0000 Received: from dggpeml500024.china.huawei.com (unknown [172.30.72.55]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4NQTmM18XYzkXpv; Mon, 5 Dec 2022 11:38:43 +0800 (CST) Received: from [10.174.178.41] (10.174.178.41) by dggpeml500024.china.huawei.com (7.185.36.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Mon, 5 Dec 2022 11:42:11 +0800 Message-ID: Date: Mon, 5 Dec 2022 11:42:10 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.2.0 Subject: Re: [PATCH] net: ethernet: mtk_wed: Fix missing of_node_put() in mtk_wed_wo_hardware_init() To: , , , , , , , , , , , , , , References: <20221205015847.27356-1-yuancan@huawei.com> From: Yuan Can In-Reply-To: <20221205015847.27356-1-yuancan@huawei.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit X-Originating-IP: [10.174.178.41] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggpeml500024.china.huawei.com (7.185.36.10) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221204_194218_344050_3C3192AE X-CRM114-Status: UNSURE ( 9.81 ) 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 Please ignore this mail, sorry about the noise. 在 2022/12/5 9:58, Yuan Can 写道: > The np needs to be released through of_node_put() in the error handling > path of mtk_wed_wo_hardware_init(). > > Fixes: 799684448e3e ("net: ethernet: mtk_wed: introduce wed wo support") > Signed-off-by: Yuan Can > --- > drivers/net/ethernet/mediatek/mtk_wed_wo.c | 9 ++++++--- > 1 file changed, 6 insertions(+), 3 deletions(-) > > diff --git a/drivers/net/ethernet/mediatek/mtk_wed_wo.c b/drivers/net/ethernet/mediatek/mtk_wed_wo.c > index 4754b6db009e..fcc4b3206d2d 100644 > --- a/drivers/net/ethernet/mediatek/mtk_wed_wo.c > +++ b/drivers/net/ethernet/mediatek/mtk_wed_wo.c > @@ -407,8 +407,10 @@ mtk_wed_wo_hardware_init(struct mtk_wed_wo *wo) > return -ENODEV; > > wo->mmio.regs = syscon_regmap_lookup_by_phandle(np, NULL); > - if (IS_ERR_OR_NULL(wo->mmio.regs)) > - return PTR_ERR(wo->mmio.regs); > + if (IS_ERR(wo->mmio.regs)) { > + ret = PTR_ERR(wo->mmio.regs); > + goto error_put; > + } > > wo->mmio.irq = irq_of_parse_and_map(np, 0); > wo->mmio.irq_mask = MTK_WED_WO_ALL_INT_MASK; > @@ -456,7 +458,8 @@ mtk_wed_wo_hardware_init(struct mtk_wed_wo *wo) > > error: > devm_free_irq(wo->hw->dev, wo->mmio.irq, wo); > - > +error_put: > + of_node_put(np); > return ret; > } > -- Best regards, Yuan Can