From: Kees Cook <keescook@chromium.org>
Date: Wed, 11 Sep 2013 19:56:50 +0000 (+0200)
Subject: HID: provide a helper for validating hid reports
X-Git-Tag: v3.2.52~83
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9c8ea9f2d66ff437dd25da392a104947c703d975;p=pandora-kernel.git

HID: provide a helper for validating hid reports

commit 331415ff16a12147d57d5c953f3a961b7ede348b upstream.

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>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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