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96eca8c97f
This code works okay but Smatch flagged it as a double free. I've changed three things to make it more clear. 1) Remove the call to free_capabilities() in acpi_power_meter_add(). This call is a no-op because the capabilities have not been allocated yet. 2) Set "*str" to NULL in free_capabilities() so that way the function can be called twice in a row without leading to a double free. 3) Call free_capabilities() in read_capabilities() instead of open coding the free. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20201007075148.GB2529578@mwanda 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.
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.