[PATCH v2 6/8] rust: drm: file: Add File abstraction

[Alyssa Rosenzweig]

> +        // SAFETY: A callback from `struct drm_driver::open` guarantees that
> +        // - `raw_dev` is valid pointer to a `sturct drm_device`

struct

> +        // - the corresponding `sturct drm_device` has been registered.

struct


> +        // SAFETY: `raw_file` valid pointer to a `struct drm_file`.

`raw_file` is a valid pointer..

With those comments fixed, this is

   Reviewed-by: Alyssa Rosenzweig <alyssa at rosenzweig.io>

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Tangential food-for-thought: might be possible to introduce a helper to
kernel::error::Result to make the error handling here more
ergonomic, but I don't know what that would look like exactly.