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ab7fbee452
Module tests show various overflow problems when writing limits and other attributes. in0_crit: Suspected overflow: [max=82, read 0, written 2147483648] in0_lcrit: Suspected overflow: [max=82, read 0, written 2147483648] in1_crit: Suspected overflow: [max=40959, read 0, written 2147483647] in1_lcrit: Suspected overflow: [max=40959, read 0, written 2147483647] power1_crit: Suspected overflow: [max=134218750, read 0, written 2147483648] update_interval: Suspected overflow: [max=2253, read 2, written 2147483647] Implement missing clamping on attribute write operations to avoid those problems. While at it, check in the probe function if the shunt resistor value passed from devicetree is valid, and bail out if it isn't. Also limit mutex use to the code calling ina2xx_set_shunt() since it isn't needed when called from the probe function. Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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.