From: Danilo Krummrich <dakr@kernel.org>
Date: Sun, 13 Jul 2025 18:26:53 +0000 (+0200)
Subject: rust: devres: provide an accessor for the device
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=85aa5b16fef7040213581df9ff093dae27bf8675;p=thirdparty%2Fkernel%2Fstable.git

rust: devres: provide an accessor for the device

Provide an accessor for the Device a Devres instance has been created
with.

For instance, this is useful when registrations want to provide a
&Device<Bound> for a scope that is protected by Devres.

Suggested-by: Benno Lossin <lossin@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Link: https://lore.kernel.org/r/20250713182737.64448-1-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
---

diff --git a/rust/kernel/devres.rs b/rust/kernel/devres.rs
index ac5e5d94ee96..152a89b78943 100644
--- a/rust/kernel/devres.rs
+++ b/rust/kernel/devres.rs
@@ -204,6 +204,11 @@ impl<T: Send> Devres<T> {
         } == 0)
     }
 
+    /// Return a reference of the [`Device`] this [`Devres`] instance has been created with.
+    pub fn device(&self) -> &Device {
+        &self.dev
+    }
+
     /// Obtain `&'a T`, bypassing the [`Revocable`].
     ///
     /// This method allows to directly obtain a `&'a T`, bypassing the [`Revocable`], by presenting