mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-04-29 04:41:21 -04:00
db9240662a
Valid latency timer values are between 1 ms and 255 ms in 1 ms steps. The store function for the "latency_timer" device attribute currently allows any value, although only the lower 16 bits will be sent to the device, and the device only stores the lower 8 bits. The hardware appears to accept the (invalid) value 0 and treats it the same as 1 (resulting in a latency of 1 ms). Change the latency_timer_store() function to accept only the values 0 to 255, returning an error -EINVAL for out-of-range values. Call kstrtou8() to parse the integer instead of the obsolete simple_strtoul(). Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Johan Hovold <johan@kernel.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.