From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from www.linuxtv.org ([130.149.80.248]:42469 "EHLO www.linuxtv.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030538AbeEYXKq (ORCPT ); Fri, 25 May 2018 19:10:46 -0400 From: Mauro Carvalho Chehab Date: Fri, 25 May 2018 22:37:27 +0000 Subject: [git:media_tree/master] media: vsp1: Release buffers for each video node To: linuxtv-commits@linuxtv.org Cc: Kieran Bingham , Laurent Pinchart , stable@vger.kernel.org Reply-to: linux-media@vger.kernel.org Message-Id: Sender: stable-owner@vger.kernel.org List-ID: This is an automatic generated email to let you know that the following patch were queued: Subject: media: vsp1: Release buffers for each video node Author: Kieran Bingham Date: Fri May 18 16:41:54 2018 -0400 Commit 372b2b0399fc ("media: v4l: vsp1: Release buffers in start_streaming error path") introduced a helper to clean up buffers on error paths, but inadvertently changed the code such that only the output WPF buffers were cleaned, rather than the video node being operated on. Since then vsp1_video_cleanup_pipeline() has grown to perform both video node cleanup, as well as pipeline cleanup. Split the implementation into two distinct functions that perform the required work, so that each video node can release its buffers correctly on streamoff. The pipe cleanup that was performed in the vsp1_video_stop_streaming() (releasing the pipe->dl) is moved to the function for clarity. Fixes: 372b2b0399fc ("media: v4l: vsp1: Release buffers in start_streaming error path") Cc: stable@vger.kernel.org # v4.14+ Signed-off-by: Kieran Bingham Signed-off-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab drivers/media/platform/vsp1/vsp1_video.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) --- diff --git a/drivers/media/platform/vsp1/vsp1_video.c b/drivers/media/platform/vsp1/vsp1_video.c index c8c12223a267..ba89dd176a13 100644 --- a/drivers/media/platform/vsp1/vsp1_video.c +++ b/drivers/media/platform/vsp1/vsp1_video.c @@ -842,9 +842,8 @@ static int vsp1_video_setup_pipeline(struct vsp1_pipeline *pipe) return 0; } -static void vsp1_video_cleanup_pipeline(struct vsp1_pipeline *pipe) +static void vsp1_video_release_buffers(struct vsp1_video *video) { - struct vsp1_video *video = pipe->output->video; struct vsp1_vb2_buffer *buffer; unsigned long flags; @@ -854,12 +853,18 @@ static void vsp1_video_cleanup_pipeline(struct vsp1_pipeline *pipe) vb2_buffer_done(&buffer->buf.vb2_buf, VB2_BUF_STATE_ERROR); INIT_LIST_HEAD(&video->irqqueue); spin_unlock_irqrestore(&video->irqlock, flags); +} + +static void vsp1_video_cleanup_pipeline(struct vsp1_pipeline *pipe) +{ + lockdep_assert_held(&pipe->lock); /* Release our partition table allocation */ - mutex_lock(&pipe->lock); kfree(pipe->part_table); pipe->part_table = NULL; - mutex_unlock(&pipe->lock); + + vsp1_dl_list_put(pipe->dl); + pipe->dl = NULL; } static int vsp1_video_start_streaming(struct vb2_queue *vq, unsigned int count) @@ -874,8 +879,9 @@ static int vsp1_video_start_streaming(struct vb2_queue *vq, unsigned int count) if (pipe->stream_count == pipe->num_inputs) { ret = vsp1_video_setup_pipeline(pipe); if (ret < 0) { - mutex_unlock(&pipe->lock); + vsp1_video_release_buffers(video); vsp1_video_cleanup_pipeline(pipe); + mutex_unlock(&pipe->lock); return ret; } @@ -925,13 +931,12 @@ static void vsp1_video_stop_streaming(struct vb2_queue *vq) if (ret == -ETIMEDOUT) dev_err(video->vsp1->dev, "pipeline stop timeout\n"); - vsp1_dl_list_put(pipe->dl); - pipe->dl = NULL; + vsp1_video_cleanup_pipeline(pipe); } mutex_unlock(&pipe->lock); media_pipeline_stop(&video->video.entity); - vsp1_video_cleanup_pipeline(pipe); + vsp1_video_release_buffers(video); vsp1_video_pipeline_put(pipe); }