HID: provide a helper for validating hid reports
authorKees Cook <keescook@chromium.org>
Wed, 11 Sep 2013 19:56:50 +0000 (21:56 +0200)
committerBadhri Jagan Sridharan <Badhri@google.com>
Fri, 11 Jul 2014 18:23:10 +0000 (11:23 -0700)
commitb8b84374b4876b2a62187102392f72a8beaf217e
treec5df515d197e08604ab34f33a53a752de3e83dbd
parent2ca27aef6f907c33d85915df5f37ddee32a92742
HID: provide a helper for validating hid reports

Many drivers need to validate the characteristics of their HID report
during initialization to avoid misusing the reports. This adds a common
helper to perform validation of the report exisitng, the field existing,
and the expected number of values within the field.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
drivers/hid/hid-core.c
include/linux/hid.h