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a68a6bef0e
The intended implementations of `ForeignOwnable` will not return null pointers from `into_foreign`, as this would render the implementation of `try_from_foreign` useless. Current users of `ForeignOwnable` rely on `into_foreign` returning non-null pointers. So require `into_foreign` to return non-null pointers. Suggested-by: Benno Lossin <lossin@kernel.org> Suggested-by: Alice Ryhl <aliceryhl@google.com> Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> Reviewed-by: Benno Lossin <lossin@kernel.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Link: https://lore.kernel.org/r/20250612-pointed-to-v3-2-b009006d86a1@kernel.org Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.