Thank you for your contribution! Sashiko AI review found 1 potential issue(s) 
to consider:

Pre-existing issues:
- [High] This problem wasn't introduced by this patch, but the DP AUX channel 
and resources registered by analogix_dp_bind() are leaked if 
drm_bridge_connector_init() fails, leading to a Use-After-Free (UAF).
--

--- Patch [1]: [PATCH v2 01/15] drm/exynos: remove dependency on DRM simple 
helpers ---
commit c403fdd838b4dabbda14312eb449cb97a7566462
Author: Diogo Silva <[email protected]>
Subject: drm/exynos: remove dependency on DRM simple helpers

The simple KMS helpers are deprecated because they only add an
intermediate layer between drivers and atomic modesetting. Open-code
drm_simple_encoder_init() by calling drm_encoder_init() directly and
providing driver-local drm_encoder_funcs.

> diff --git a/drivers/gpu/drm/exynos/exynos_dp.c 
> b/drivers/gpu/drm/exynos/exynos_dp.c
> index b805403281504..957382223956a 100644
> --- a/drivers/gpu/drm/exynos/exynos_dp.c
> +++ b/drivers/gpu/drm/exynos/exynos_dp.c

[ ... ]

> @@ -95,7 +99,12 @@ static int exynos_dp_bind(struct device *dev, struct 
> device *master, void *data)
>  
>       dp->drm_dev = drm_dev;
>  
> -     drm_simple_encoder_init(drm_dev, encoder, DRM_MODE_ENCODER_TMDS);
> +     ret = drm_encoder_init(drm_dev, encoder, &exynos_dp_encoder_funcs,
> +                            DRM_MODE_ENCODER_TMDS, NULL);
> +     if (ret) {
> +             drm_err(drm_dev, "Failed to initialize encoder\n");
> +             return ret;
> +     }
>  
>       drm_encoder_helper_add(encoder, &exynos_dp_encoder_helper_funcs);

[Severity: High]
This isn't a bug introduced by this patch, but looking further down in
exynos_dp_bind(), if drm_bridge_connector_init() fails, does this code leak
the DP AUX character device and resources registered by analogix_dp_bind()?

Currently, if the bridge connector init fails:

        connector = drm_bridge_connector_init(dp->drm_dev, 
dp->plat_data.encoder);
        if (IS_ERR(connector)) {
                ret = PTR_ERR(connector);
                dev_err(dp->dev, "Failed to initialize bridge_connector\n");
                return ret;
        }

The error path returns directly without calling analogix_dp_unbind() to roll
back the earlier success of analogix_dp_bind().

Since the component bind fails, the master DRM bind will also fail, and the
component's unbind hook (exynos_dp_unbind()) is never invoked.

When the devres framework later frees the struct analogix_dp_device, could
the still-registered /dev/drm_dp_auxN character device cause a
Use-After-Free if accessed from userspace?

-- 
Sashiko AI review ยท 
https://sashiko.dev/#/patchset/[email protected]?part=1

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