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The left side of the loop condition never becomes false. hwchan cannot be NULL, because it points to elements of the hw_channels array that takes one of 4 predefined values: pm8018_xoadc_channels, pm8038_xoadc_channels, pm8058_xoadc_channels, pm8921_xoadc_channels. Found by Linux Verification Center (linuxtesting.org) with SVACE. Reviewed-by: Andi Shyti <andi.shyti@kernel.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Kasumov Ruslan <s02210418@gse.cs.msu.ru> Link: https://lore.kernel.org/r/20230315135114.22684-1-xhxgldhlpfy@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.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.