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ab5893fdc0
AMD Renoir driver tries to identify the presence of DMIC by evaluating ACPI _WOV entry, and it returns -EINVAL when the ACPI call failed. This ended up an error message like snd_rn_pci_acp3x: probe of 0000:04:00.5 failed with error -22 although the system is correctly set up. For avoiding such a superfluous error message, change the return value to -ENODEV. Then the driver core just skips to the next one without complaining. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20201127143200.16272-3-tiwai@suse.de Signed-off-by: Mark Brown <broonie@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 Restructured Text 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.