From patchwork Fri Dec 1 13:23:39 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Ujfalusi X-Patchwork-Id: 10087063 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E4DC1603B4 for ; Fri, 1 Dec 2017 13:23:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C00882A528 for ; Fri, 1 Dec 2017 13:23:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B51272A52D; Fri, 1 Dec 2017 13:23:13 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id DA1C22A52C for ; Fri, 1 Dec 2017 13:23:12 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8A11C6ED21; Fri, 1 Dec 2017 13:23:10 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from lelnx194.ext.ti.com (lelnx194.ext.ti.com [198.47.27.80]) by gabe.freedesktop.org (Postfix) with ESMTPS id F13C26ED20 for ; Fri, 1 Dec 2017 13:23:08 +0000 (UTC) Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by lelnx194.ext.ti.com (8.15.1/8.15.1) with ESMTP id vB1DN5VZ017840; Fri, 1 Dec 2017 07:23:05 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ti.com; s=ti-com-17Q1; t=1512134585; bh=S9rlVISfRZ9c4nTWtSGBL7t/pgutSndkLi956Ti2gHc=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=Y7iFDRYRX1D0pStyZ5Rrh9bVRt0wSYC76WJksh4ENHb8YMLpXXlXPvwgWzPAGI7Tg dYGiActG75NFW0YlAEHcf9EQJttdsqACJhy//+wD/Z+9AKIRThUJ4y62M27MeFXRSJ GtF7iUkgHIwJ5x1nfy2gGIRZW+M5SM7qsPu3yW5s= Received: from DFLE115.ent.ti.com (dfle115.ent.ti.com [10.64.6.36]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id vB1DN0TD009679; Fri, 1 Dec 2017 07:23:05 -0600 Received: from DFLE108.ent.ti.com (10.64.6.29) by DFLE115.ent.ti.com (10.64.6.36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.1.845.34; Fri, 1 Dec 2017 07:23:00 -0600 Received: from dlep32.itg.ti.com (157.170.170.100) by DFLE108.ent.ti.com (10.64.6.29) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.845.34 via Frontend Transport; Fri, 1 Dec 2017 07:23:00 -0600 Received: from feketebors.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id vB1DMrHM028773; Fri, 1 Dec 2017 07:22:58 -0600 From: Peter Ujfalusi To: , Subject: [PATCH 2/7] drm/omap: Allocate drm_device earlier and unref it as last step Date: Fri, 1 Dec 2017 15:23:39 +0200 Message-ID: <20171201132344.13450-3-peter.ujfalusi@ti.com> X-Mailer: git-send-email 2.15.1 In-Reply-To: <20171201132344.13450-1-peter.ujfalusi@ti.com> References: <20171201132344.13450-1-peter.ujfalusi@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Cc: airlied@linux.ie, jsarha@ti.com, dri-devel@lists.freedesktop.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 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" X-Virus-Scanned: ClamAV using ClamSMTP If we allocate the drm_device earlier we can just return the error code without the need to use goto. Do the unref of the drm_device as a last step when cleaning up. This will make the drm_device available longer for us and makes sure that we only free up the memory when all other cleanups have been already done. Signed-off-by: Peter Ujfalusi Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/omapdrm/omap_drv.c | 29 +++++++++++++---------------- 1 file changed, 13 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c index 3f9ea2971277..2c1d04fb36f2 100644 --- a/drivers/gpu/drm/omapdrm/omap_drv.c +++ b/drivers/gpu/drm/omapdrm/omap_drv.c @@ -565,6 +565,14 @@ static int pdev_probe(struct platform_device *pdev) if (!priv) return -ENOMEM; + /* Allocate and initialize the DRM device. */ + ddev = drm_dev_alloc(&omap_drm_driver, &pdev->dev); + if (IS_ERR(ddev)) + return PTR_ERR(ddev); + + ddev->dev_private = priv; + platform_set_drvdata(pdev, ddev); + omap_crtc_pre_init(); ret = omap_connect_dssdevs(); @@ -581,16 +589,6 @@ static int pdev_probe(struct platform_device *pdev) spin_lock_init(&priv->list_lock); INIT_LIST_HEAD(&priv->obj_list); - /* Allocate and initialize the DRM device. */ - ddev = drm_dev_alloc(&omap_drm_driver, &pdev->dev); - if (IS_ERR(ddev)) { - ret = PTR_ERR(ddev); - goto err_destroy_wq; - } - - ddev->dev_private = priv; - platform_set_drvdata(pdev, ddev); - /* Get memory bandwidth limits */ if (priv->dispc_ops->get_memory_bandwidth_limit) priv->max_bandwidth = @@ -601,7 +599,7 @@ static int pdev_probe(struct platform_device *pdev) ret = omap_modeset_init(ddev); if (ret) { dev_err(&pdev->dev, "omap_modeset_init failed: ret=%d\n", ret); - goto err_free_drm_dev; + goto err_gem_deinit; } /* Initialize vblank handling, start with all CRTCs disabled. */ @@ -637,14 +635,13 @@ static int pdev_probe(struct platform_device *pdev) err_cleanup_modeset: drm_mode_config_cleanup(ddev); omap_drm_irq_uninstall(ddev); -err_free_drm_dev: +err_gem_deinit: omap_gem_deinit(ddev); - drm_dev_unref(ddev); -err_destroy_wq: destroy_workqueue(priv->wq); omap_disconnect_dssdevs(); err_crtc_uninit: omap_crtc_pre_uninit(); + drm_dev_unref(ddev); return ret; } @@ -670,13 +667,13 @@ static int pdev_remove(struct platform_device *pdev) omap_drm_irq_uninstall(ddev); omap_gem_deinit(ddev); - drm_dev_unref(ddev); - destroy_workqueue(priv->wq); omap_disconnect_dssdevs(); omap_crtc_pre_uninit(); + drm_dev_unref(ddev); + return 0; }