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d21fed0675
This is more standard to have sanity checks at the entry of a function, instead of allocating some memory first and having to free it if a condition is not met. Shuffle code a bit to check 'masklength' before calling 'bitmap_alloc()' Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/98a351adda1908c306e981b9cc86d3dbc79eb5ec.1626261211.git.christophe.jaillet@wanadoo.fr 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.