[PATCH 3/5] drm/imx: ipuv3 crtc: Cleanup ipu planes in ipu_drm_unbind()

[Philipp Zabel]

Am Freitag, den 20.11.2015, 16:14 +0800 schrieb Liu Ying:
> To avoid memory leakage, we need to cleanup ipu planes in ipu_drm_unbind().
> 
> Signed-off-by: Liu Ying <Ying.Liu at freescale.com>
> ---
> This patch applies to the imx-drm/fixes branch of Philipp Zabel's open git.
> 
>  drivers/gpu/drm/imx/ipuv3-crtc.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/gpu/drm/imx/ipuv3-crtc.c b/drivers/gpu/drm/imx/ipuv3-crtc.c
> index 59f44df..467905c 100644
> --- a/drivers/gpu/drm/imx/ipuv3-crtc.c
> +++ b/drivers/gpu/drm/imx/ipuv3-crtc.c
> @@ -446,6 +446,11 @@ static void ipu_drm_unbind(struct device *dev, struct device *master,
>  	imx_drm_remove_crtc(ipu_crtc->imx_crtc);
>  
>  	ipu_plane_put_resources(ipu_crtc->plane[0]);
> +
> +	if (ipu_crtc->plane[1])
> +		ipu_plane_cleanup(ipu_crtc->plane[1]);
> +	ipu_plane_cleanup(ipu_crtc->plane[0]);
> +
>  	ipu_put_resources(ipu_crtc);
>  }
>  

Shouldn't this already be handled by the DRM core calling the
plane->destroy callbacks from drm_mode_config_cleanup (called by
imx_drm_driver_unload shortly after component_unbind_all)?

regards
Philipp