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Modern HP laptops do not necessarily actually contain a lis3lv02d sensor, yet they still define a HPQ6007 device in there ACPI tables. This leads to the following messages being logged in dmesg: [ 17.376342] hp_accel: laptop model unknown, using default axes configuration [ 17.399766] lis3lv02d: unknown sensor type 0x0 [ 17.399804] hp_accel: probe of HPQ6007:00 failed with error -22 The third message is unnecessary and does not provide any useful info, change the return value for unknown sensors to -ENODEV. This is the proper return value to indicate that the driver will not be handling the device and it silences the pr_warn printing the third message. Signed-off-by: Hans de Goede <hdegoede@redhat.com> BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=199715 Link: https://lore.kernel.org/r/20210217102501.31758-2-hdegoede@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.