[PATCH] rust: fix clippy::too-long-first-doc-paragraph

[Benno Lossin <benno.lossin@proton.me>]

When running `make LLVM=1 CLIPPY=1` on my machine, I get this error:

    error: first doc comment paragraph is too long
      --> rust/kernel/driver.rs:13:1
       |
    13 | / /// The [`RegistrationOps`] trait serves as generic interface for subsystems (e.g., PCI, Platform,
    14 | | /// Amba, etc.) to provide the corresponding subsystem specific implementation to register /
    15 | | /// unregister a driver of the particular type (`RegType`).
    16 | | ///
    17 | | /// For instance, the PCI subsystem would set `RegType` to `bindings::pci_driver` and call
       | |_
       |
       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_long_first_doc_paragraph
       = note: `-D clippy::too-long-first-doc-paragraph` implied by `-D warnings`
       = help: to override `-D warnings` add `#[allow(clippy::too_long_first_doc_paragraph)]`

Thus add a short one-line description.

Fixes: ea7e18289f44 ("rust: implement generic driver registration")
Signed-off-by: Benno Lossin <benno.lossin@proton.me>
---
The error also occurs in v6.14-rc1, so it must have slipped through our
testing, which I find a bit strange. Also nobody reported it for rc1, so
maybe this is only something that I encountered?
---
 rust/kernel/driver.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/rust/kernel/driver.rs b/rust/kernel/driver.rs
index 2a16d5e64e6c..65c9c1776556 100644
--- a/rust/kernel/driver.rs
+++ b/rust/kernel/driver.rs
@@ -10,6 +10,8 @@
 use core::pin::Pin;
 use macros::{pin_data, pinned_drop};
 
+/// Generic interface for subsystem driver registrations.
+///
 /// The [`RegistrationOps`] trait serves as generic interface for subsystems (e.g., PCI, Platform,
 /// Amba, etc.) to provide the corresponding subsystem specific implementation to register /
 /// unregister a driver of the particular type (`RegType`).

base-commit: a64dcfb451e254085a7daee5fe51bf22959d52d3
-- 
2.46.0