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Martin Larsson
bd1d558c9c
If the ADC vref regulator returns an error, for example, if CONFIG_REGULATOR is not set, the error will be used as a reference voltage. Introduce a guard for negative return values instead of unconditionally casting it to u32. Acked-by: Haibo Chen <haibo.chen@nxp.com> Signed-off-by: Martin Larsson <martin.larsson@actia.se> Reviewed-by: Fabio Estevam <festevam@gmail.com> Link: https://lore.kernel.org/r/20220720153136.3502440-1-martin.larsson@actia.se 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.