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uhci: fix uhci_async_cancel_all 

We update the QTAILQ in the loop, thus we must use the SAFE version
to make sure we don't touch the queue struct after freeing it.

https://bugzilla.novell.com/show_bug.cgi?id=766310

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
(cherry picked from commit 77fa9aee38)

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This commit is contained in:
Gerd Hoffmann 2012-06-15 09:39:50 +02:00 committed by Michael Roth
parent b10daa61f9
commit f49853a4bd
1 changed files with 2 additions and 2 deletions
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4
hw/usb/hcd-uhci.c
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@ -288,10 +288,10 @@ static void uhci_async_cancel_device(UHCIState *s, USBDevice *dev)
static void uhci_async_cancel_all(UHCIState *s)
{
UHCIQueue *queue;
UHCIQueue *queue, *nq;
UHCIAsync *curr, *n;
QTAILQ_FOREACH(queue, &s->queues, next) {
QTAILQ_FOREACH_SAFE(queue, &s->queues, next, nq) {
QTAILQ_FOREACH_SAFE(curr, &queue->asyncs, next, n) {
uhci_async_unlink(curr);
uhci_async_cancel(curr);