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a25a7df518
Previous version of ad7091r event handler received the ADC state pointer
and retrieved the iio device from driver data field with dev_get_drvdata().
However, no driver data have ever been set, which led to null pointer
dereference when running the event handler.
Pass the iio device to the event handler and retrieve the ADC state struct
from it so we avoid the null pointer dereference and save the driver from
filling the driver data field.
Fixes:
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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.