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@kernel.org>
---
Andrew: as usual, please feel free to rebase if that is what you
normally do, of course. This was in next-20250910. Thanks!

 rust/kernel/maple_tree.rs | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/rust/kernel/maple_tree.rs b/rust/kernel/maple_tree.rs
index 31b6c13d08ef..e72eec56bf57 100644
--- a/rust/kernel/maple_tree.rs
+++ b/rust/kernel/maple_tree.rs
@@ -93,8 +93,7 @@ pub fn new() -> impl PinInit<Self> {
     /// # Errors
     ///
     /// If the maple tree already contains a range using the given index, then this call will
-    /// return an [`InsertError`] with the [`Occupied`] kind. It may also fail if memory
-    /// allocation fails.
+    /// return an [`InsertErrorKind::Occupied`]. It may also fail if memory allocation fails.
     ///
     /// # Examples
     ///
@@ -132,8 +131,8 @@ pub fn insert(&self, index: usize, value: T, gfp: Flags) -> Result<(), InsertErr
     /// # Errors
     ///
     /// If the maple tree already contains an overlapping range, then this call will return an
-    /// [`InsertError`] with the [`Occupied`] kind. It may also fail if memory allocation fails
-    /// or if the requested range is invalid (e.g. empty).
+    /// [`InsertErrorKind::Occupied`]. It may also fail if memory allocation fails or if the
+    /// requested range is invalid (e.g. empty).
     ///
     /// # Examples
     ///

base-commit: a3bff28df80b33386863823262550491155e896b
--
2.51.0