drm/rockchip: check yuv2yuv existence before assigning window data

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Before assigning window data, we should check if the yuv2yuv vop-data
is set at all, because it looks like it can otherwise reference something
wrong, as I saw on my rk3188 today which ended up in a null pointer
dereference in vop_plane_atomic_update when accessing the yuv2yuv data.

Fixes: 1c21aa8f2b ("drm/rockchip: Fix YUV buffers color rendering")
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/2556882.Heuq80WCVD@phil

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This commit is contained in:

Heiko Stuebner 2019-01-26 01:24:37 +01:00

parent ac109c8247

commit ce6912b407

1 changed files with 3 additions and 1 deletions

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drivers/gpu/drm/rockchip/rockchip_drm_vop.c

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