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commit4dbf066d96upstream. A user reports that on their Lenovo Corsola Magneton with EC firmware steelix-15194.270.0 the driver probe fails with EINVAL. It turns out that the power LED does not contain any color components as indicated by the following "ectool led power query" output: Brightness range for LED 1: red : 0x0 green : 0x0 blue : 0x0 yellow : 0x0 white : 0x0 amber : 0x0 The LED also does not react to commands sent manually through ectool and is generally non-functional. Instead of failing the probe for all LEDs managed by the EC when one without color components is encountered, silently skip those. Cc: stable@vger.kernel.org Fixes:8d6ce6f3ec("leds: Add ChromeOS EC driver") Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Link: https://patch.msgid.link/20251028-cros_ec-leds-no-colors-v1-1-ebe13a02022a@weissschuh.net Signed-off-by: Lee Jones <lee@kernel.org> 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 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.