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Dan Carpenter a68f3bd139 HID: hid-debug: clean up snprintf() checks in hid_resolv_usage()
The snprintf() limits are complicated and slightly wrong when it does:

	max(0, HID_DEBUG_BUFSIZE - len - 1)

The "- 1" should not be there.  It means we can't use the last
byte of the buffer.  If we change the first snprintf() to scnprintf()
then we can remove the max().

At the start of the function the strlen(buf) is going always going to
be < HID_DEBUG_BUFSIZE so that is safe.  If it were > HID_DEBUG_BUFSIZE
then that would result in a WARN().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2021-09-22 11:49:17 +02:00
Documentation This is the bulk of pin control changes for the v5.15 kernel cycle, 2021-09-02 14:22:56 -07:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
arch This is the bulk of pin control changes for the v5.15 kernel cycle, 2021-09-02 14:22:56 -07:00
block for-5.15-tag 2021-08-31 09:41:22 -07:00
certs certs: Add support for using elliptic curve keys for signing modules 2021-08-23 19:55:42 +03:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2021-08-30 12:57:10 -07:00
drivers HID: hid-debug: clean up snprintf() checks in hid_resolv_usage() 2021-09-22 11:49:17 +02:00
fs linux-kselftest-kunit-5.15-rc1 2021-09-02 12:32:12 -07:00
include This is the bulk of pin control changes for the v5.15 kernel cycle, 2021-09-02 14:22:56 -07:00
init printk changes for 5.15 2021-09-01 18:41:13 -07:00
ipc Merge branch 'akpm' (patches from Andrew) 2021-07-02 12:08:10 -07:00
kernel LKMM updates: 2021-09-02 13:00:15 -07:00
lib parisc architecture updates for kernel 5.15: 2021-09-02 13:16:00 -07:00
mm memblock: robustness and debug improvements 2021-09-02 12:26:31 -07:00
net TTY / Serial patches for 5.15-rc1 2021-09-01 09:51:16 -07:00
samples VFIO update for v5.15-rc1 2021-09-02 13:41:33 -07:00
scripts VFIO update for v5.15-rc1 2021-09-02 13:41:33 -07:00
security integrity-v5.15 2021-09-02 12:51:41 -07:00
sound parisc architecture updates for kernel 5.15: 2021-09-02 13:16:00 -07:00
tools LKMM updates: 2021-09-02 13:00:15 -07:00
usr .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
virt KVM: Do not leak memory for duplicate debugfs directories 2021-08-04 06:02:03 -04:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap mailmap: update email address of Matthias Fuchs and Thomas Körper 2021-08-19 09:39:44 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: move Murali Karicheri to credits 2021-04-29 15:47:30 -07:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS This is the bulk of pin control changes for the v5.15 kernel cycle, 2021-09-02 14:22:56 -07:00
Makefile parisc architecture updates for kernel 5.15: 2021-09-02 13:16:00 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README

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.