[PATCH v3 3/4] rust: kernel: page: remove unnecessary helper function from doctest

[Daniel Sedlak <daniel@sedlak.dev>]

Doctest in the `page.rs` contained helper function `dox` which acted
as a wrapper for using the `?` operator. However, this is not needed
because doctests are implicitly wrapped in function see [1].

Link: https://lore.kernel.org/rust-for-linux/459782fe-afca-4fe6-8ffb-ba7c7886de0a@de.bosch.com/
Link: https://doc.rust-lang.org/rustdoc/write-documentation/documentation-tests.html#using--in-doc-tests [1]
Suggested-by: Dirk Behme <dirk.behme@de.bosch.com>
Suggested-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Tamir Duberstein <tamird@gmail.com>
Signed-off: Signed-off-by: Daniel Sedlak <daniel@sedlak.dev>
---
 rust/kernel/page.rs | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/rust/kernel/page.rs b/rust/kernel/page.rs
index fdac6c375fe4..f6126aca33a6 100644
--- a/rust/kernel/page.rs
+++ b/rust/kernel/page.rs
@@ -57,9 +57,8 @@ impl Page {
     /// ```
     /// use kernel::page::Page;
     ///
-    /// # fn dox() -> Result<(), kernel::alloc::AllocError> {
     /// let page = Page::alloc_page(GFP_KERNEL)?;
-    /// # Ok(()) }
+    /// # Ok::<(), kernel::alloc::AllocError>(())
     /// ```
     ///
     /// Allocate memory for a page and zero its contents.
@@ -67,9 +66,8 @@ impl Page {
     /// ```
     /// use kernel::page::Page;
     ///
-    /// # fn dox() -> Result<(), kernel::alloc::AllocError> {
     /// let page = Page::alloc_page(GFP_KERNEL | __GFP_ZERO)?;
-    /// # Ok(()) }
+    /// # Ok::<(), kernel::alloc::AllocError>(())
     /// ```
     pub fn alloc_page(flags: Flags) -> Result<Self, AllocError> {
         // SAFETY: Depending on the value of `gfp_flags`, this call may sleep. Other than that, it
-- 
2.47.0