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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 64427C433B4 for ; Fri, 14 May 2021 08:28:24 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 24C5161457 for ; Fri, 14 May 2021 08:28:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 24C5161457 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 712BB89D66; Fri, 14 May 2021 08:28:23 +0000 (UTC) Received: from szxga04-in.huawei.com (szxga04-in.huawei.com [45.249.212.190]) by gabe.freedesktop.org (Postfix) with ESMTPS id A78D589D66 for ; Fri, 14 May 2021 08:28:22 +0000 (UTC) Received: from DGGEMS411-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4FhM6T6wQYz1BMBS; Fri, 14 May 2021 16:25:37 +0800 (CST) Received: from DESKTOP-EFRLNPK.china.huawei.com (10.174.176.189) by DGGEMS411-HUB.china.huawei.com (10.3.19.211) with Microsoft SMTP Server id 14.3.498.0; Fri, 14 May 2021 16:28:12 +0800 From: Qiheng Lin To: , VMware Graphics , Roland Scheidegger , Zack Rusin , David Airlie , Daniel Vetter Subject: [PATCH -next] drm/vmwgfx: Fix return value check in vmw_setup_pci_resources() Date: Fri, 14 May 2021 16:28:12 +0800 Message-ID: <20210514082812.1697-1-linqiheng@huawei.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.174.176.189] X-CFilter-Loop: Reflected X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Hulk Robot , kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" In case of error, the function devm_ioremap() returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. After that, the error code -ENOMEM should be returned. Reported-by: Hulk Robot Signed-off-by: Qiheng Lin --- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 5cf3a5bf539f..6f5ea00973e0 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -719,10 +719,10 @@ static int vmw_setup_pci_resources(struct vmw_private *dev, dev->rmmio = devm_ioremap(dev->drm.dev, rmmio_start, rmmio_size); - if (IS_ERR(dev->rmmio)) { + if (!dev->rmmio) { DRM_ERROR("Failed mapping registers mmio memory.\n"); pci_release_regions(pdev); - return PTR_ERR(dev->rmmio); + return -ENOMEM; } } else if (pci_id == VMWGFX_PCI_ID_SVGA2) { dev->io_start = pci_resource_start(pdev, 0);