From cdcedd6981194e511cc206887db661d016069d68 Mon Sep 17 00:00:00 2001
From: Felipe Balbi <balbi@ti.com>
Date: Mon, 15 Jul 2013 12:36:35 +0300
Subject: [PATCH] usb: dwc3: gadget: don't prevent gadget from being probed if
 we fail

In case we fail our ->udc_start() callback, we
should be ready to accept another modprobe following
the failed one.

We had forgotten to clear dwc->gadget_driver back
to NULL and, because of that, we were preventing
gadget driver modprobe from being retried.

Cc: <stable@vger.kernel.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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