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Commit6cb9441bfe("ACPI: APEI: EINJ: Transition to the faux device interface") updated the APEI error injection driver to use the faux device interface and now for devices that don't support ACPI, the following error message is seen on boot: ERR KERN faux acpi-einj: probe did not succeed, tearing down the device The APEI error injection driver returns -ENODEV in the probe function if ACPI is not supported and so after transitioning the driver to the faux device interface, the error returned from the probe now causes the above error message to be displayed. Fix this by moving the code that detects if ACPI is supported to the einj_init() function to fix the false error message displayed for devices that don't support ACPI. Fixes:6cb9441bfe("ACPI: APEI: EINJ: Transition to the faux device interface") Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Link: https://patch.msgid.link/20250501124621.1251450-1-jonathanh@nvidia.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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.