On Thu, Mar 22, 2018 at 05:23:04PM +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> We want to get rid of plane->fb on atomic drivers. Stop looking at it.
>
> Cc: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 12 +-----------
> 1 file changed, 1 insertion(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> index e18800ed7cd1..0dd9fb617c28 100644
> --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> @@ -819,16 +819,6 @@ static void atmel_hlcdc_plane_atomic_disable(struct drm_plane *p,
> atmel_hlcdc_layer_read_reg(&plane->layer, ATMEL_HLCDC_LAYER_ISR);
> }
>
> -static void atmel_hlcdc_plane_destroy(struct drm_plane *p)
> -{
> - struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p);
> -
> - if (plane->base.fb)
> - drm_framebuffer_put(plane->base.fb);
> -
> - drm_plane_cleanup(p);
> -}
This looks like refcount leak duct-tape due to lack of
drm_atomic_helper_shutdown() in atmel. If you just apply this I think
you'll start leaking.
We need a patch here to add the shutdown call instead.
-Daniel
> -
> static int atmel_hlcdc_plane_atomic_set_property(struct drm_plane *p,
> struct drm_plane_state *s,
> struct drm_property *property,
> @@ -1038,7 +1028,7 @@ static void atmel_hlcdc_plane_atomic_destroy_state(struct drm_plane *p,
> static const struct drm_plane_funcs layer_plane_funcs = {
> .update_plane = drm_atomic_helper_update_plane,
> .disable_plane = drm_atomic_helper_disable_plane,
> - .destroy = atmel_hlcdc_plane_destroy,
> + .destroy = drm_plane_cleanup,
> .reset = atmel_hlcdc_plane_reset,
> .atomic_duplicate_state = atmel_hlcdc_plane_atomic_duplicate_state,
> .atomic_destroy_state = atmel_hlcdc_plane_atomic_destroy_state,
> --
> 2.16.1
>
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--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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