From patchwork Fri Oct 8 17:31:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zack Rusin X-Patchwork-Id: 12545861 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ECBC2C433EF for ; Fri, 8 Oct 2021 17:32:00 +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 B8F3460E53 for ; Fri, 8 Oct 2021 17:32:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org B8F3460E53 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=vmware.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 50A986E0FB; Fri, 8 Oct 2021 17:31:57 +0000 (UTC) Received: from EX13-EDG-OU-002.vmware.com (ex13-edg-ou-002.vmware.com [208.91.0.190]) by gabe.freedesktop.org (Postfix) with ESMTPS id AC7B16E0F8 for ; Fri, 8 Oct 2021 17:31:52 +0000 (UTC) Received: from sc9-mailhost2.vmware.com (10.113.161.72) by EX13-EDG-OU-002.vmware.com (10.113.208.156) with Microsoft SMTP Server id 15.0.1156.6; Fri, 8 Oct 2021 10:31:47 -0700 Received: from vmware.com (unknown [10.21.244.180]) by sc9-mailhost2.vmware.com (Postfix) with ESMTP id B7FA320512; Fri, 8 Oct 2021 10:31:51 -0700 (PDT) From: Zack Rusin To: CC: Zack Rusin , Martin Krastev Subject: [PATCH 2/5] drm/vmwgfx: Release ttm memory if probe fails Date: Fri, 8 Oct 2021 13:31:43 -0400 Message-ID: <20211008173146.645127-3-zackr@vmware.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211008173146.645127-1-zackr@vmware.com> References: <20211008173146.645127-1-zackr@vmware.com> MIME-Version: 1.0 Received-SPF: None (EX13-EDG-OU-002.vmware.com: zackr@vmware.com does not designate permitted sender hosts) 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The ttm mem global state was leaking if the vmwgfx driver load failed. In case of a driver load failure we have to make sure we also release the ttm mem global state. Signed-off-by: Zack Rusin Reviewed-by: Martin Krastev --- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index ab9a1750e1df..8d0b083ba267 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -1617,34 +1617,40 @@ static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent) ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &driver); if (ret) - return ret; + goto out_error; ret = pcim_enable_device(pdev); if (ret) - return ret; + goto out_error; vmw = devm_drm_dev_alloc(&pdev->dev, &driver, struct vmw_private, drm); - if (IS_ERR(vmw)) - return PTR_ERR(vmw); + if (IS_ERR(vmw)) { + ret = PTR_ERR(vmw); + goto out_error; + } pci_set_drvdata(pdev, &vmw->drm); ret = ttm_mem_global_init(&ttm_mem_glob, &pdev->dev); if (ret) - return ret; + goto out_error; ret = vmw_driver_load(vmw, ent->device); if (ret) - return ret; + goto out_release; ret = drm_dev_register(&vmw->drm, 0); - if (ret) { - vmw_driver_unload(&vmw->drm); - return ret; - } + if (ret) + goto out_unload; return 0; +out_unload: + vmw_driver_unload(&vmw->drm); +out_release: + ttm_mem_global_release(&ttm_mem_glob); +out_error: + return ret; } static int __init vmwgfx_init(void)