From 8d62cd65d74d0e241b3a152f7347bb66126b705b Mon Sep 17 00:00:00 2001
From: Paul Zimmerman <paulz@synopsys.com>
Date: Wed, 15 Feb 2012 13:35:06 +0200
Subject: [PATCH] usb: dwc3: gadget: don't wrap around the TRB poll on non-ISOC

If we have a non-ISOC endpoint, we will not have a Link TRB
pointing to the beginning of the TRB pool. On such endpoints,
we don't want to let the driver wrap around the TRB pool
otherwise controller will hang waiting for a valid TRB.

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