42814c438a
The for_each_available_child_of_node helper internally makes use of the of_get_next_available_child() which performs an of_node_get() on each iteration when searching for next available child node. Should an available child node be found, then it would return a device node pointer with reference count incremented, thus early return from the middle of the loop requires an explicit of_node_put() to prevent reference count leak. To stop the reference leak, explicitly call of_node_put() before returning after an error occurred. Link: https://lore.kernel.org/r/20210120184810.3068794-1-kw@linux.com Signed-off-by: Krzysztof Wilczyński <kw@linux.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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.