HID: fix a couple of off-by-ones

HID: fix a couple of off-by-ones

commit 4ab25786c87eb20857bbb715c3ae34ec8fd6a214 upstream.

There are a few very theoretical off-by-one bugs in report descriptor size
checking when performing a pre-parsing fixup. Fix those.

Reported-by: Ben Hawkes <hawkes@google.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
[bwh: Backported to 2.6.32:
 - Adjust context
 - Drop change to a quirk in hid-lg.c that doesn't exist here]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
CVE-2014-3184

Signed-off-by: Willy Tarreau <w@1wt.eu>