Claude review: Re: [PATCH] drm/mediatek: dsi: Store driver data before invoking mipi_dsi_host_register

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Overall Series Review

Subject: Re: [PATCH] drm/mediatek: dsi: Store driver data before invoking
 mipi_dsi_host_register
Author: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Patches: 4
Reviewed: 2026-02-11T17:11:30.197586

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This is a single-patch submission that fixes a critical NULL pointer dereference in the MediaTek DSI driver. The patch addresses an initialization ordering issue where `mipi_dsi_host_register()` is called before `platform_set_drvdata()`, causing a crash when the registration triggers callbacks that attempt to retrieve the driver data.

**Summary:**
- **Type:** Bug fix
- **Severity:** Critical (kernel crash/NULL pointer dereference)
- **Complexity:** Simple (2-line move)
- **Testing:** Verified on Xiaomi Smart Clock x04g (MT8167)

**Overall Assessment:** This is a correct fix for a real bug. The patch has already received a Reviewed-by tag from AngeloGioacchino Del Regno, a maintainer familiar with this subsystem. However, there are some issues with the patch metadata that should be addressed.

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