linux-kernel - [PATCH 02/13] rust: error: move unsafe block into function call

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Date: Tue, 16 Jan 2024 17:01:27 +0100
From: Valentin Obst <kernel@...entinobst.de>
To: Miguel Ojeda <ojeda@...nel.org>,
	Alex Gaynor <alex.gaynor@...il.com>,
	Wedson Almeida Filho <wedsonaf@...il.com>
Cc: Boqun Feng <boqun.feng@...il.com>,
	Gary Guo <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	Benno Lossin <benno.lossin@...ton.me>,
	Andreas Hindborg <a.hindborg@...sung.com>,
	Alice Ryhl <aliceryhl@...gle.com>,
	rust-for-linux@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Valentin Obst <kernel@...entinobst.de>
Subject: [PATCH 02/13] rust: error: move unsafe block into function call

The `from_err_ptr` function is safe. There is no need for the call to it
to be inside the unsafe block.

Signed-off-by: Valentin Obst <kernel@...entinobst.de>
---
 rust/kernel/error.rs | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/rust/kernel/error.rs b/rust/kernel/error.rs
index 4f0c1edd63b7..6f6676bc0eb9 100644
--- a/rust/kernel/error.rs
+++ b/rust/kernel/error.rs
@@ -265,12 +265,7 @@ pub fn to_result(err: core::ffi::c_int) -> Result {
 ///     index: u32,
 /// ) -> Result<*mut core::ffi::c_void> {
 ///     // SAFETY: FFI call.
-///     unsafe {
-///         from_err_ptr(bindings::devm_platform_ioremap_resource(
-///             pdev.to_ptr(),
-///             index,
-///         ))
-///     }
+///     from_err_ptr(unsafe { bindings::devm_platform_ioremap_resource(pdev.to_ptr(), index) })
 /// }
 /// ```
 // TODO: Remove `dead_code` marker once an in-kernel client is available.
-- 
2.43.0