[PATCH] drm: Update todo.rst

[Maxime Ripard]

Hi Daniel,

On Thu, Jan 21, 2021 at 12:29:19PM +0100, Daniel Vetter wrote:
> Interrnship season is starting, let's review this. One thing that's

  ^ internship

> pending is Maxime's work to roll out drm_atomic_state pointers to all
> callbacks, he said he'll remove that entry once it's all done.

I plan on sending it by the end of the week

> Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
> Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
> Cc: Maxime Ripard <mripard at kernel.org>
> Cc: Thomas Zimmermann <tzimmermann at suse.de>
> Cc: David Airlie <airlied at linux.ie>
> Cc: Daniel Vetter <daniel at ffwll.ch>
> ---
>  Documentation/gpu/todo.rst | 28 +++++++++++++++-------------
>  1 file changed, 15 insertions(+), 13 deletions(-)
> 
> diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
> index 009d8e6c7e3c..492768dd2fd9 100644
> --- a/Documentation/gpu/todo.rst
> +++ b/Documentation/gpu/todo.rst
> @@ -577,20 +577,24 @@ Contact: Daniel Vetter
>  
>  Level: Intermediate
>  
> -KMS cleanups
> -------------
> +Object lifetime fixes
> +---------------------
> +
> +There's two related issues here
> +
> +- Cleanup up the various ->destroy callbacks, which often are all the same
> +  simple code.
>  
> -Some of these date from the very introduction of KMS in 2008 ...
> +- Lots of drivers erroneously allocate DRM modeset objects using devm_kzalloc,
> +  which results in use-after free issues on driver unload. This can be serious
> +  trouble even for drivers for hardwared integrated on the SoC due to

                                  ^ hardware?

> +  EPROBE_DEFERRED backoff.

Thanks!
Maxime
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