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Keisuke Nishimura be7e611274 KVM: arm64: vgic-its: Add error handling in vgic_its_cache_translation
The return value of xa_store() needs to be checked. This fix adds an
error handling path that resolves the kref inconsistency on failure. As
suggested by Oliver Upton, this function does not return the error code
intentionally because the translation cache is best effort.

Fixes: 8201d1028c ("KVM: arm64: vgic-its: Maintain a translation cache per ITS")
Signed-off-by: Keisuke Nishimura <keisuke.nishimura@inria.fr>
Suggested-by: Oliver Upton <oliver.upton@linux.dev>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20241130144952.23729-1-keisuke.nishimura@inria.fr
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
History 2024-12-03 16:22:10 -08:00
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README

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.