From 7c5881d1625d844cdfcc027a970f0d034b982ba5 Mon Sep 17 00:00:00 2001
From: Felipe Balbi <balbi@ti.com>
Date: Mon, 29 Aug 2011 11:54:08 +0300
Subject: [PATCH] usb: gadget: audio: queue wLength-sized requests

On Audio class, the wLength field of the Setup
packet, contains the data payload size of the
following Data phase. Instead of harcoding values,
use wLength.

This also fixes a bug where Gadget driver had to
receive 3 bytes, but it was queueing a ZLP.

Signed-off-by: Felipe Balbi <balbi@ti.com>
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