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authorBenno Lossin <benno.lossin@proton.me>2023-04-08 15:25:29 +0300
committerMiguel Ojeda <ojeda@kernel.org>2023-04-12 19:41:05 +0300
commitd6dbca3592209d29c10e171224c34803805e88ca (patch)
tree12bd06587d811debc295c81cdf1c0befa76d4f93 /rust
parent70a21e54a42232f1056db7f05a194f56e03e7d3e (diff)
downloadlinux-d6dbca3592209d29c10e171224c34803805e88ca.tar.xz
rust: sync: change error type of constructor functions
Change the error type of the constructors of `Arc` and `UniqueArc` to be `AllocError` instead of `Error`. This makes the API more clear as to what can go wrong when calling `try_new` or its variants. Signed-off-by: Benno Lossin <benno.lossin@proton.me> Reviewed-by: Andreas Hindborg <a.hindborg@samsung.com> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Gary Guo <gary@garyguo.net> Link: https://lore.kernel.org/r/20230408122429.1103522-4-y86-dev@protonmail.com Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Diffstat (limited to 'rust')
-rw-r--r--rust/kernel/sync/arc.rs8
1 files changed, 4 insertions, 4 deletions
diff --git a/rust/kernel/sync/arc.rs b/rust/kernel/sync/arc.rs
index 8ce6d6bf478e..34d0e7cbe62e 100644
--- a/rust/kernel/sync/arc.rs
+++ b/rust/kernel/sync/arc.rs
@@ -17,11 +17,11 @@
use crate::{
bindings,
- error::Result,
types::{ForeignOwnable, Opaque},
};
use alloc::boxed::Box;
use core::{
+ alloc::AllocError,
fmt,
marker::{PhantomData, Unsize},
mem::{ManuallyDrop, MaybeUninit},
@@ -152,7 +152,7 @@ unsafe impl<T: ?Sized + Sync + Send> Sync for Arc<T> {}
impl<T> Arc<T> {
/// Constructs a new reference counted instance of `T`.
- pub fn try_new(contents: T) -> Result<Self> {
+ pub fn try_new(contents: T) -> Result<Self, AllocError> {
// INVARIANT: The refcount is initialised to a non-zero value.
let value = ArcInner {
// SAFETY: There are no safety requirements for this FFI call.
@@ -472,7 +472,7 @@ pub struct UniqueArc<T: ?Sized> {
impl<T> UniqueArc<T> {
/// Tries to allocate a new [`UniqueArc`] instance.
- pub fn try_new(value: T) -> Result<Self> {
+ pub fn try_new(value: T) -> Result<Self, AllocError> {
Ok(Self {
// INVARIANT: The newly-created object has a ref-count of 1.
inner: Arc::try_new(value)?,
@@ -480,7 +480,7 @@ impl<T> UniqueArc<T> {
}
/// Tries to allocate a new [`UniqueArc`] instance whose contents are not initialised yet.
- pub fn try_new_uninit() -> Result<UniqueArc<MaybeUninit<T>>> {
+ pub fn try_new_uninit() -> Result<UniqueArc<MaybeUninit<T>>, AllocError> {
Ok(UniqueArc::<MaybeUninit<T>> {
// INVARIANT: The newly-created object has a ref-count of 1.
inner: Arc::try_new(MaybeUninit::uninit())?,