Re: [PATCH 0/6] Rockchip DRM use-after-free & null-ptr-deref fixes

[Chaoyi Chen <chaoyi.chen@rock-chips.com>]

Hi Cristian,

On 1/22/2026 7:17 AM, Cristian Ciocaltea wrote:
> The first three patches in the series are fixes for use-after-free &
> null-ptr-deref related issues found in dw_dp and inno-hdmi Rockchip DRM
> drivers.
> 

Have you tried calling unbind() and bind() multiple times? 
In this case, can DRM still work properly?

> The remaining ones provide a few minor improvements to dw_dp and
> dw_hdmi_qp.
> 
> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
> ---
> Cristian Ciocaltea (6):
>       drm/rockchip: inno-hdmi: Switch to drmm_kzalloc()
>       drm/rockchip: dw_dp: Switch to drmm_kzalloc()
>       drm/rockchip: dw_dp: Fix null-ptr-deref in dw_dp_remove()
>       drm/rockchip: dw_dp: Simplify error handling
>       drm/rockchip: dw_dp: Drop unnecessary #include
>       drm/rockchip: dw_hdmi_qp: Switch to drmm_encoder_init()
> 
>  drivers/gpu/drm/rockchip/dw_dp-rockchip.c      | 35 ++++++++++----------------
>  drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c | 13 +++++-----
>  drivers/gpu/drm/rockchip/inno_hdmi-rockchip.c  |  3 ++-
>  3 files changed, 21 insertions(+), 30 deletions(-)
> ---
> base-commit: 68b271a3a94cfd6c7695a96b6398b52feb89e2c2
> change-id: 20260122-drm-rk-fixes-a7622c71553e
> 
> 
> 
> 
-- 
Best, 
Chaoyi