From 35fe185a5455160db638820211bad5aed45a669f Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Thu, 30 Aug 2012 15:00:33 +0200
Subject: [PATCH] ehci: Properly cleanup packets on cancel

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
(cherry picked from commit 0e7953525f52aa6c098dc0c1ce0b4a80ce82da45)

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
 hw/usb/hcd-ehci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c
index 78a248f..4fe85c8 100644
--- a/hw/usb/hcd-ehci.c
+++ b/hw/usb/hcd-ehci.c
@@ -747,6 +747,8 @@ static void ehci_free_packet(EHCIPacket *p)
     trace_usb_ehci_packet_action(p->queue, p, "free");
     if (p->async == EHCI_ASYNC_INFLIGHT) {
         usb_cancel_packet(&p->packet);
+        usb_packet_unmap(&p->packet, &p->sgl);
+        qemu_sglist_destroy(&p->sgl);
     }
     QTAILQ_REMOVE(&p->queue->packets, p, next);
     usb_packet_cleanup(&p->packet);