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 C682AC32771 for ; Sat, 24 Sep 2022 13:04:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version: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:In-Reply-To:References: List-Owner; bh=YUzCySPsnct8H4n+iAniYNJhsBYDvsNsTqpF90zS+5g=; b=f7TwALPRtfdt6f 3K3dKBZq8HJLlXdCxJIukY06aSmIrTnTd3DN7twMcKsfLyCe4pJRHQq0IoB3x+mOo43gT1TH+Ihl8 i13a80R2p4sepY5b7IfGmbD6DjSXIzn3i8ruUdIEg96uKeIgegOr4TjIYaqCowbcIaIcXDNlUg//s Qy3s53lV3/0Z1YUsO/XSfexBZiezXh5oI2kRiLaHC2XpkFNvdd8Y1XfDmX/hRSRZ3ZuKzVNbZEkT+ VoOyKbMnmWaoKeiKbtk8rqD441IPXUgqAjvznfhROqaR6XlDp337IHynpF2nvCDM+ZXXTfGHA37Ia W+lKFMH6g0Qm72+t2iew==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oc4oy-007Cwn-Sy; Sat, 24 Sep 2022 13:03:52 +0000 Received: from szxga02-in.huawei.com ([45.249.212.188]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oc4ou-007Cu3-61 for linux-mtd@lists.infradead.org; Sat, 24 Sep 2022 13:03:50 +0000 Received: from dggpemm500022.china.huawei.com (unknown [172.30.72.57]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4MZTch6MwvzWgvl; Sat, 24 Sep 2022 20:59:32 +0800 (CST) Received: from dggpemm500007.china.huawei.com (7.185.36.183) by dggpemm500022.china.huawei.com (7.185.36.162) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Sat, 24 Sep 2022 21:03:33 +0800 Received: from huawei.com (10.175.103.91) by dggpemm500007.china.huawei.com (7.185.36.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Sat, 24 Sep 2022 21:03:32 +0800 From: Yang Yingliang To: CC: , , Subject: [PATCH -next] mtd: rawnand: intel: Add missing of_node_put() in ebu_nand_probe() Date: Sat, 24 Sep 2022 21:10:10 +0800 Message-ID: <20220924131010.957117-1-yangyingliang@huawei.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.175.103.91] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm500007.china.huawei.com (7.185.36.183) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220924_060348_417260_3EDCFFE7 X-CRM114-Status: UNSURE ( 8.98 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org The 'chip_np' returned by of_get_next_child() with refcount decremented, of_node_put() need be called in error path to decrease the refcount. Fixes: bfc618fcc3f1 ("mtd: rawnand: intel: Read the chip-select line from the correct OF node") Signed-off-by: Yang Yingliang --- drivers/mtd/nand/raw/intel-nand-controller.c | 23 +++++++++++++------- 1 file changed, 15 insertions(+), 8 deletions(-) diff --git a/drivers/mtd/nand/raw/intel-nand-controller.c b/drivers/mtd/nand/raw/intel-nand-controller.c index d4a0987e93ac..6f4cea81f97c 100644 --- a/drivers/mtd/nand/raw/intel-nand-controller.c +++ b/drivers/mtd/nand/raw/intel-nand-controller.c @@ -608,11 +608,12 @@ static int ebu_nand_probe(struct platform_device *pdev) ret = of_property_read_u32(chip_np, "reg", &cs); if (ret) { dev_err(dev, "failed to get chip select: %d\n", ret); - return ret; + goto err_of_node_put; } if (cs >= MAX_CS) { dev_err(dev, "got invalid chip select: %d\n", cs); - return -EINVAL; + ret = -EINVAL; + goto err_of_node_put; } ebu_host->cs_num = cs; @@ -620,18 +621,22 @@ static int ebu_nand_probe(struct platform_device *pdev) resname = devm_kasprintf(dev, GFP_KERNEL, "nand_cs%d", cs); ebu_host->cs[cs].chipaddr = devm_platform_ioremap_resource_byname(pdev, resname); - if (IS_ERR(ebu_host->cs[cs].chipaddr)) - return PTR_ERR(ebu_host->cs[cs].chipaddr); + if (IS_ERR(ebu_host->cs[cs].chipaddr)) { + ret = PTR_ERR(ebu_host->cs[cs].chipaddr); + goto err_of_node_put; + } ebu_host->clk = devm_clk_get(dev, NULL); - if (IS_ERR(ebu_host->clk)) - return dev_err_probe(dev, PTR_ERR(ebu_host->clk), - "failed to get clock\n"); + if (IS_ERR(ebu_host->clk)) { + ret = dev_err_probe(dev, PTR_ERR(ebu_host->clk), + "failed to get clock\n"); + goto err_of_node_put; + } ret = clk_prepare_enable(ebu_host->clk); if (ret) { dev_err(dev, "failed to enable clock: %d\n", ret); - return ret; + goto err_of_node_put; } ebu_host->dma_tx = dma_request_chan(dev, "tx"); @@ -695,6 +700,8 @@ static int ebu_nand_probe(struct platform_device *pdev) ebu_dma_cleanup(ebu_host); err_disable_unprepare_clk: clk_disable_unprepare(ebu_host->clk); +err_of_node_put: + of_node_put(chip_np); return ret; } -- 2.25.1 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/