Re: [PATCH 2/3] media: vsp1: Don't open-code vb2_fop_release()

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Quoting Laurent Pinchart (2022-03-18 21:14:45)
> Use the vb2_fop_release() helper to replace the open-coded version. The
> video->lock is assigned to the queue lock, used by vb2_fop_release(), so
> the only functional difference is that v4l2_fh_release() is now called
> before vsp1_device_put(). This should be harmless.
> 

Seems to check out.

Reviewed-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>

> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
> ---
>  drivers/media/platform/renesas/vsp1/vsp1_video.c | 10 +---------
>  1 file changed, 1 insertion(+), 9 deletions(-)
> 
> diff --git a/drivers/media/platform/renesas/vsp1/vsp1_video.c b/drivers/media/platform/renesas/vsp1/vsp1_video.c
> index 044eb5778820..8f53abc71db2 100644
> --- a/drivers/media/platform/renesas/vsp1/vsp1_video.c
> +++ b/drivers/media/platform/renesas/vsp1/vsp1_video.c
> @@ -1129,19 +1129,11 @@ static int vsp1_video_open(struct file *file)
>  static int vsp1_video_release(struct file *file)
>  {
>         struct vsp1_video *video = video_drvdata(file);
> -       struct v4l2_fh *vfh = file->private_data;
>  
> -       mutex_lock(&video->lock);
> -       if (video->queue.owner == vfh) {
> -               vb2_queue_release(&video->queue);
> -               video->queue.owner = NULL;
> -       }
> -       mutex_unlock(&video->lock);
> +       vb2_fop_release(file);
>  
>         vsp1_device_put(video->vsp1);
>  
> -       v4l2_fh_release(file);
> -
>         file->private_data = NULL;
>  
>         return 0;
> -- 
> Regards,
> 
> Laurent Pinchart
>




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