ffe896d043
[ Upstream commit c2910c00fee4cbb7b222d6e02846adef9ae4135a ] Check if div or pres is zero before using it as argument for ffs(). In case div is zero ffs() will return 0 and thus substracting from zero will lead to invalid values to be setup in registers. Fixes:7a110b9107("clk: at91: clk-master: re-factor master clock") Fixes:75c88143f3("clk: at91: clk-master: add master clock support for SAMA7G5") Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20211011112719.3951784-9-claudiu.beznea@microchip.com Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.