From 2089fa6dd5ce37586408a28e5a4f446c62984f76 Mon Sep 17 00:00:00 2001
From: Andiry Xu <andiry.xu@amd.com>
Date: Wed, 18 Jan 2012 17:47:12 +0800
Subject: [PATCH] xHCI: Cleanup isoc transfer ring when TD length mismatch
 found

commit cf840551a884360841bd3d3ce1ad0868ff0b759a upstream.

When a TD length mismatch is found during isoc TRB enqueue, it directly
returns -EINVAL. However, isoc transfer is partially enqueued at this time,
and the ring should be cleared.

This should be backported to kernels as old as 2.6.36, which contain the
commit 522989a27c7badb608155b1f1dea3487ed431f74 "xhci: Fix failed
enqueue in the middle of isoch TD."

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
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