From patchwork Fri Aug 4 16:32:38 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kieran Bingham X-Patchwork-Id: 9881685 X-Patchwork-Delegate: geert@linux-m68k.org 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 51C6E60360 for ; Fri, 4 Aug 2017 16:32:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3D1F42883D for ; Fri, 4 Aug 2017 16:32:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2FCD8287BD; Fri, 4 Aug 2017 16:32:54 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 98246287BD for ; Fri, 4 Aug 2017 16:32:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752917AbdHDQcv (ORCPT ); Fri, 4 Aug 2017 12:32:51 -0400 Received: from mail.kernel.org ([198.145.29.99]:37484 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752558AbdHDQcu (ORCPT ); Fri, 4 Aug 2017 12:32:50 -0400 Received: from CookieMonster.cookiemonster.local (cpc89242-aztw30-2-0-cust488.18-1.cable.virginm.net [86.31.129.233]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D584D22CB3; Fri, 4 Aug 2017 16:32:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D584D22CB3 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: mail.kernel.org; spf=fail smtp.mailfrom=kieran.bingham+renesas@ideasonboard.com From: Kieran Bingham To: linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org, hans.verkuil@cisco.com Cc: laurent.pinchart@ideasonboard.com, kieran.bingham@ideasonboard.com, Kieran Bingham Subject: [PATCH v4 1/7] v4l: vsp1: Release buffers in start_streaming error path Date: Fri, 4 Aug 2017 17:32:38 +0100 Message-Id: X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Presently any received buffers are only released back to vb2 if vsp1_video_stop_streaming() is called. If vsp1_video_start_streaming() encounters an error, we will be warned by the vb2 handlers that buffers have not been returned. Move the buffer cleanup code to its own function to prevent duplication and call from both vsp1_video_stop_streaming() and the error path in vsp1_video_start_streaming(). Signed-off-by: Kieran Bingham Reviewed-by: Laurent Pinchart --- drivers/media/platform/vsp1/vsp1_video.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/drivers/media/platform/vsp1/vsp1_video.c b/drivers/media/platform/vsp1/vsp1_video.c index 5af3486afe07..fdb135e45fea 100644 --- a/drivers/media/platform/vsp1/vsp1_video.c +++ b/drivers/media/platform/vsp1/vsp1_video.c @@ -822,6 +822,20 @@ static int vsp1_video_setup_pipeline(struct vsp1_pipeline *pipe) return 0; } +static void vsp1_video_cleanup_pipeline(struct vsp1_pipeline *pipe) +{ + struct vsp1_video *video = pipe->output->video; + struct vsp1_vb2_buffer *buffer; + unsigned long flags; + + /* Remove all buffers from the IRQ queue. */ + spin_lock_irqsave(&video->irqlock, flags); + list_for_each_entry(buffer, &video->irqqueue, queue) + vb2_buffer_done(&buffer->buf.vb2_buf, VB2_BUF_STATE_ERROR); + INIT_LIST_HEAD(&video->irqqueue); + spin_unlock_irqrestore(&video->irqlock, flags); +} + static int vsp1_video_start_streaming(struct vb2_queue *vq, unsigned int count) { struct vsp1_video *video = vb2_get_drv_priv(vq); @@ -835,6 +849,7 @@ static int vsp1_video_start_streaming(struct vb2_queue *vq, unsigned int count) ret = vsp1_video_setup_pipeline(pipe); if (ret < 0) { mutex_unlock(&pipe->lock); + vsp1_video_cleanup_pipeline(pipe); return ret; } @@ -866,7 +881,6 @@ static void vsp1_video_stop_streaming(struct vb2_queue *vq) { struct vsp1_video *video = vb2_get_drv_priv(vq); struct vsp1_pipeline *pipe = video->rwpf->pipe; - struct vsp1_vb2_buffer *buffer; unsigned long flags; int ret; @@ -891,14 +905,8 @@ static void vsp1_video_stop_streaming(struct vb2_queue *vq) mutex_unlock(&pipe->lock); media_pipeline_stop(&video->video.entity); + vsp1_video_cleanup_pipeline(pipe); vsp1_video_pipeline_put(pipe); - - /* Remove all buffers from the IRQ queue. */ - spin_lock_irqsave(&video->irqlock, flags); - list_for_each_entry(buffer, &video->irqqueue, queue) - vb2_buffer_done(&buffer->buf.vb2_buf, VB2_BUF_STATE_ERROR); - INIT_LIST_HEAD(&video->irqqueue); - spin_unlock_irqrestore(&video->irqlock, flags); } static const struct vb2_ops vsp1_video_queue_qops = {