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6c667ef6e2
The hid_hw_raw_request() function returns negative error codes or the
number bytes transferred. The problem is that when it returns negative
error codes and we check if "ret < sizeof(arctis_1_battery_request)",
then the negative values are type promoted from int to high unsigned long
values and treated as success.
This was detected using Smatch:
drivers/hid/hid-steelseries.c:393 steelseries_headset_arctis_1_fetch_battery()
warn: error code type promoted to positive: 'ret'
Fixes: a0c76896c3 ("HID: steelseries: Add support for Arctis 1 XBox")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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.