Input: gtco - fix potential out-of-bound access

parse_hid_report_descriptor() has a while (i < length) loop, which
only guarantees that there's at least 1 byte in the buffer, but the
loop body can read multiple bytes which causes out-of-bounds access.

Reported-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Change-Id: I7b57556c100d28d8f10c03ea5480224e770fb64a
Git-commit: a50829479f58416a013a4ccca791336af3c584c7
Git-repo: https://android.googlesource.com/kernel/common


Signed-off-by: Srinivasa Rao Kuppala <srkupp@codeaurora.org>