Boris Brezillon <boris.brezillon@xxxxxxxxxxx> writes:
> vc4_plane_atomic_async_update() calls vc4_plane_atomic_check()
> which in turn calls vc4_plane_setup_clipping_and_scaling(), and since
> commit 58a6a36fe8e0 ("drm/vc4: Use
> drm_atomic_helper_check_plane_state() to simplify the logic"), this
> function accesses plane_state->state which will be NULL when called
> from the async update path because we're passing the current plane
> state, and plane_state->state has been assigned to NULL in
> drm_atomic_helper_swap_state().
>
> Pass the new state instead of the current one (the new state has
> ->state set to a non-NULL value).
>
> Fixes: 58a6a36fe8e0 ("drm/vc4: Use drm_atomic_helper_check_plane_state() to simplify the logic")
> Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxx>
I'm glad this worked!
Reviewed-by: Eric Anholt <eric@xxxxxxxxxx>
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