From patchwork Fri Oct 11 05:24:36 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wei Yongjun X-Patchwork-Id: 11184821 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 64E1114ED for ; Fri, 11 Oct 2019 05:25:26 +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 426B521A4A for ; Fri, 11 Oct 2019 05:25:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Rk8gdCda" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 426B521A4A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version: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=5q8KJneWDIaFDRKhWFHfUDp6SHoEAUezMfP7wn2H9R4=; b=Rk8gdCdazZKr5G FNY4HAMPxfsB3PqmPf4WX26nzj94e8xF+phPBJbnqNlYG2ON5j+RGLt69a/msU13N7DyjzB4MjtRo sw+ZV11BHgHJYtL0LigkT0l50dNTE750T8XdtzuTf6JefyD2KlbaZV9uUHHjSskQUTMYjQHm0c3fF 2gC77EEGdgsyj0pvUO2dGdO/cDKz+29+iFhlUNYlKGOsb9m9Csc5r1g+fNHMsIR4OUpGSWy//tXyP Jqs42mGp8iR6ecY5qFm+6QRPx3FFM/L6VnHefPgQkeysZbhZE9lUR8Vj31grqKMMN4MKDtjrdgQYG QUFJ12hvhPDxWKefZ7hQ==; 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 1iInQZ-0005Z9-Q2; Fri, 11 Oct 2019 05:25:23 +0000 Received: from szxga04-in.huawei.com ([45.249.212.190] helo=huawei.com) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iInQX-0005YY-GE for linux-arm-kernel@lists.infradead.org; Fri, 11 Oct 2019 05:25:23 +0000 Received: from DGGEMS412-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 317B86ADC63DE4083DD0; Fri, 11 Oct 2019 13:25:11 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS412-HUB.china.huawei.com (10.3.19.212) with Microsoft SMTP Server id 14.3.439.0; Fri, 11 Oct 2019 13:25:03 +0800 From: Wei Yongjun To: Santosh Shilimkar , Tero Kristo Subject: [PATCH -next] soc: ti: omap-prm: fix return value check in omap_prm_probe() Date: Fri, 11 Oct 2019 05:24:36 +0000 Message-ID: <20191011052436.76075-1-weiyongjun1@huawei.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191010_222521_712736_254D4AFE X-CRM114-Status: UNSURE ( 9.05 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.2 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 [45.249.212.190 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches 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: kernel-janitors@vger.kernel.org, Wei Yongjun , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org In case of error, the function devm_ioremap_resource() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Fixes: 3e99cb214f03 ("soc: ti: add initial PRM driver with reset control support") Signed-off-by: Wei Yongjun --- drivers/soc/ti/omap_prm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/soc/ti/omap_prm.c b/drivers/soc/ti/omap_prm.c index db47a8bceb87..96c6f777519c 100644 --- a/drivers/soc/ti/omap_prm.c +++ b/drivers/soc/ti/omap_prm.c @@ -375,8 +375,8 @@ static int omap_prm_probe(struct platform_device *pdev) prm->data = data; prm->base = devm_ioremap_resource(&pdev->dev, res); - if (!prm->base) - return -ENOMEM; + if (IS_ERR(prm->base)) + return PTR_ERR(prm->base); return omap_prm_reset_init(pdev, prm); }