Claude review: drm/i915/display: Switch to managed for plane

Claude Code Review Bot
2026-04-12T00:51:25Z

Patch Review

Same pattern as patch 5. The conversion to `drmm_universal_plane_alloc()` is correct. The `plane_state` remaining as a raw `kzalloc` is fine -- states have their own lifecycle via `atomic_destroy_state`.

The removal of `.destroy` callbacks and the simplified error paths look correct. The code reordering (format/modifier selection before allocation) is necessary because `drmm_universal_plane_alloc()` needs these parameters upfront.

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Generated by Claude Code Patch Reviewer