From 74ad60292bf0108de9884c531d7ec3f65c206230 Mon Sep 17 00:00:00 2001
From: Arvid Brodin <arvid.brodin@enea.com>
Date: Tue, 23 Aug 2011 01:25:30 +0200
Subject: [PATCH] usb/isp1760: Clear TT buffer on interrupted low & full speed
 transfers

When a low or full speed urb in progress is unlinked (or some other error
occurs), the buffer in the transaction translator (part of the hub) might end
up in an inconsistent state. This can make all further low and full speed
transactions fail, unless the buffer is cleared.

The bug can be seen when running the usbtest unlink tests as "set altsetting
to 0 failed, -110", and gets fixed by this patch.

Signed-off-by: Arvid Brodin <arvid.brodin@enea.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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