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9d19371df5
The adt7475_update_device() function returns error pointers. The problem is that in show_pwmfreq() we dereference it before the check. And then in pwm_use_point2_pwm_at_crit_show() there isn't a check at all. I don't know if it's required, but it silences a static checker warning and it's doesn't hurt anything to check. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Tokunori Ikegami <ikegami@allied-telesis.co.jp> 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 Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
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.