From patchwork Fri Feb 17 03:13:25 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen-Yu Tsai X-Patchwork-Id: 9579819 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 7E9AE6042F for ; Fri, 17 Feb 2017 13:38:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6F48C286CF for ; Fri, 17 Feb 2017 13:38:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 641C2286DE; Fri, 17 Feb 2017 13:38:27 +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=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED 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 2B28F286CF for ; Fri, 17 Feb 2017 13:38:27 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id ABEFE6ED0C; Fri, 17 Feb 2017 13:38:17 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from wens.csie.org (mirror2.csie.ntu.edu.tw [140.112.30.76]) by gabe.freedesktop.org (Postfix) with ESMTPS id BCE266EC63 for ; Fri, 17 Feb 2017 03:22:06 +0000 (UTC) Received: by wens.csie.org (Postfix, from userid 1000) id 497B45FC9F; Fri, 17 Feb 2017 11:13:33 +0800 (CST) From: Chen-Yu Tsai To: Maxime Ripard , David Airlie Subject: [PATCH 2/7] drm/sun4i: Fix up error path cleanup for master bind function Date: Fri, 17 Feb 2017 11:13:25 +0800 Message-Id: <20170217031330.14087-3-wens@csie.org> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170217031330.14087-1-wens@csie.org> References: <20170217031330.14087-1-wens@csie.org> X-Mailman-Approved-At: Fri, 17 Feb 2017 13:38:13 +0000 Cc: linux-arm-kernel@lists.infradead.org, Chen-Yu Tsai , linux-sunxi@googlegroups.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.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: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP The master bind function calls numerous drm functions which initialize underlying structures. It also tries to bind the various components of the display pipeline, some of which may add additional drm objects. This patch adds proper cleanup functions in the error path of the master bind function. This requires the patch "drm/sun4i: Move drm_mode_config_cleanup call to main driver", which splits out drm_mode_config_cleanup from sun4i_framebuffer_free so we can call it separately. Signed-off-by: Chen-Yu Tsai --- drivers/gpu/drm/sun4i/sun4i_drv.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c index 99a0f1861be2..8e777167bca4 100644 --- a/drivers/gpu/drm/sun4i/sun4i_drv.c +++ b/drivers/gpu/drm/sun4i/sun4i_drv.c @@ -136,7 +136,7 @@ static int sun4i_drv_bind(struct device *dev) ret = component_bind_all(drm->dev, drm); if (ret) { dev_err(drm->dev, "Couldn't bind all pipelines components\n"); - goto free_drm; + goto cleanup_mode_config; } /* Create our layers */ @@ -144,7 +144,7 @@ static int sun4i_drv_bind(struct device *dev) if (IS_ERR(drv->layers)) { dev_err(drm->dev, "Couldn't create the planes\n"); ret = PTR_ERR(drv->layers); - goto free_drm; + goto cleanup_mode_config; } /* Create our CRTC */ @@ -152,7 +152,7 @@ static int sun4i_drv_bind(struct device *dev) if (!drv->crtc) { dev_err(drm->dev, "Couldn't create the CRTC\n"); ret = -EINVAL; - goto free_drm; + goto cleanup_mode_config; } drm->irq_enabled = true; @@ -164,7 +164,7 @@ static int sun4i_drv_bind(struct device *dev) if (IS_ERR(drv->fbdev)) { dev_err(drm->dev, "Couldn't create our framebuffer\n"); ret = PTR_ERR(drv->fbdev); - goto free_drm; + goto cleanup_mode_config; } /* Enable connectors polling */ @@ -172,10 +172,16 @@ static int sun4i_drv_bind(struct device *dev) ret = drm_dev_register(drm, 0); if (ret) - goto free_drm; + goto finish_poll; return 0; +finish_poll: + drm_kms_helper_poll_fini(drm); + sun4i_framebuffer_free(drm); +cleanup_mode_config: + drm_mode_config_cleanup(drm); + drm_vblank_cleanup(drm); free_drm: drm_dev_unref(drm); return ret;