[PATCH] rust: maple_tree: fix intra-doc link

[Alice Ryhl]

On Wed, Sep 10, 2025 at 04:02:12PM +0200, Miguel Ojeda wrote:
> A couple `Occupied` intra-doc links are broken:
> 
>     error: unresolved link to `Occupied`
>       --> rust/kernel/maple_tree.rs:96:46
>        |
>     96 |     /// return an [`InsertError`] with the [`Occupied`] kind. It may also fail if memory
>        |                                              ^^^^^^^^ no item named `Occupied` in scope
>        |
>        = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
>        = note: `-D rustdoc::broken-intra-doc-links` implied by `-D warnings`
>        = help: to override `-D warnings` add `#[allow(rustdoc::broken_intra_doc_links)]`
> 
>     error: unresolved link to `Occupied`
>        --> rust/kernel/maple_tree.rs:135:36
>         |
>     135 |     /// [`InsertError`] with the [`Occupied`] kind. It may also fail if memory allocation fails
>         |                                    ^^^^^^^^ no item named `Occupied` in scope
>         |
>         = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
> 
> Thus fix them.
> 
> Fixes: 7f51d867d2ed ("rust: maple_tree: add MapleTree")
> Signed-off-by: Miguel Ojeda <ojeda at kernel.org>

Reviewed-by: Alice Ryhl <aliceryhl at google.com>