diff options
Diffstat (limited to 'rust')
| -rw-r--r-- | rust/kernel/error.rs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/rust/kernel/error.rs b/rust/kernel/error.rs index e52793f77196..9003a1b86da8 100644 --- a/rust/kernel/error.rs +++ b/rust/kernel/error.rs @@ -199,8 +199,13 @@ pub mod code { /// /// The value is a valid `errno` (i.e. `>= -MAX_ERRNO && < 0`). #[derive(Clone, Copy, PartialEq, Eq)] +#[repr(transparent)] pub struct Error(NonZeroI32); +// SAFETY: `Error` is `repr(transparent)` over `NonZeroI32`, which is part of the option layout +// optimization guarantee, so all zeroes is a valid representation for `None`. +unsafe impl pin_init::ZeroableOption for Error {} + impl Error { /// Creates an [`Error`] from a kernel error code. /// |