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[ Upstream commit 607aad1e4356c210dbef9022955a3089377909b2 ] If CONFIG_OF_KOBJ is not set, a device_node does not contain a kobj and attempts to access the embedded kobj via kref_read break the compile. Replace affected kref_read calls with a macro that reads the refcount if it exists and returns 1 if there is no embedded kobj. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202401291740.VP219WIz-lkp@intel.com/ Fixes: 4dde83569832 ("of: Fix double free in of_parse_phandle_with_args_map") Signed-off-by: Christian A. Ehrhardt <lk@c--e.de> Link: https://lore.kernel.org/r/20240129192556.403271-1-lk@c--e.de Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Sasha Levin <sashal@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.