From patchwork Tue Mar 17 01:37:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 11441615 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3A846139A for ; Tue, 17 Mar 2020 01:44:32 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 0A41720663 for ; Tue, 17 Mar 2020 01:44:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="cSvNKRZB" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0A41720663 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nxp.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject: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=Fo7SqVvYG/WygyAfdOmWdsMGtiVr5AgKS9uOmGbr6CE=; b=cSv NKRZBCOo28LJL5KM3h/oqX/prGfvMupivpJ9V0Bpme3DcVqH30DUc7K7cyBEr3hU3NrlK63l2wf5z UiwqMTGEQ+FomFpUKIWOo1KwUu8TuidbmX2Eqk1t4rtyRagEEJP6QpoqkNJQP3j9GHDbGMMO5fZl2 KquqWwvXBR0BYdPo6Swow+P83RbTfJXTfJaMwcymr7qKQ8oVhEQmR42er554KnxpnnlzR/unJJYtq K8BuUYUA7Y7wMKx1x0/IesnZdfm7E6dsZfW4RHdSXtge75m2EA670mNRt/Eh1hU9kHCGUqVQDDW+x I1UJ0zH7ldjg8OdhB9jFDwH76CsZ6tQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jE1HR-0003B7-0j; Tue, 17 Mar 2020 01:44:29 +0000 Received: from inva020.nxp.com ([92.121.34.13]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jE1HN-0003AH-Er for linux-arm-kernel@lists.infradead.org; Tue, 17 Mar 2020 01:44:26 +0000 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id B173C1A0CD2; Tue, 17 Mar 2020 02:44:21 +0100 (CET) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 0661F1A0CD1; Tue, 17 Mar 2020 02:44:16 +0100 (CET) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 5C659402C4; Tue, 17 Mar 2020 09:44:09 +0800 (SGT) From: Anson Huang To: shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, leonard.crestez@nxp.com, abel.vesa@nxp.com, l.stach@pengutronix.de, peng.fan@nxp.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] soc: imx8m: No need to put node when of_find_compatible_node() failed Date: Tue, 17 Mar 2020 09:37:33 +0800 Message-Id: <1584409053-23116-1-git-send-email-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.7.4 X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200316_184425_639684_3F323B72 X-CRM114-Status: UNSURE ( 7.31 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [92.121.34.13 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Linux-imx@nxp.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org No need to put node when of_find_compatible_node() failed, return immediately to simplify the code. Signed-off-by: Anson Huang --- drivers/soc/imx/soc-imx8m.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/soc/imx/soc-imx8m.c b/drivers/soc/imx/soc-imx8m.c index 719e1f18..7b0759a 100644 --- a/drivers/soc/imx/soc-imx8m.c +++ b/drivers/soc/imx/soc-imx8m.c @@ -53,11 +53,11 @@ static u32 __init imx8mq_soc_revision(void) struct device_node *np; void __iomem *ocotp_base; u32 magic; - u32 rev = 0; + u32 rev; np = of_find_compatible_node(NULL, NULL, "fsl,imx8mq-ocotp"); if (!np) - goto out; + return 0; ocotp_base = of_iomap(np, 0); WARN_ON(!ocotp_base); @@ -78,9 +78,8 @@ static u32 __init imx8mq_soc_revision(void) soc_uid |= readl_relaxed(ocotp_base + OCOTP_UID_LOW); iounmap(ocotp_base); - -out: of_node_put(np); + return rev; }