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When detecting updates of bus topology, the data of fw_device is newly allocated and caches the content of configuration ROM from the corresponding node. Then, the tree of device is sought to find the previous data of fw_device corresponding to the node. If found, the previous data is updated and reused and the data of fw_device newly allocated is going to be released. The above procedure is done in the call of device_find_child(), however it is a bit abusing against the intention of the helper function, since it is preferable to find only without updating. This commit splits the update outside of the call. Cc: Zijun Hu <zijun_hu@icloud.com> Link: https://lore.kernel.org/r/20240820132132.28839-1-o-takashi@sakamocchi.jp Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
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.