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ehci: Fix NULL ptr deref when unplugging an USB dev with an iso stream active 

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Hans de Goede 2012-08-28 11:50:26 +02:00 committed by Gerd Hoffmann
parent e983395d30
commit 7ce86aa1aa
1 changed files with 1 additions and 1 deletions
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2
hw/usb/hcd-ehci.c
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@ -1598,7 +1598,7 @@ static int ehci_process_itd(EHCIState *ehci,
dev = ehci_find_device(ehci, devaddr);
ep = usb_ep_get(dev, pid, endp);
if (ep->type == USB_ENDPOINT_XFER_ISOC) {
if (ep && ep->type == USB_ENDPOINT_XFER_ISOC) {
usb_packet_setup(&ehci->ipacket, pid, ep, addr);
usb_packet_map(&ehci->ipacket, &ehci->isgl);
ret = usb_handle_packet(dev, &ehci->ipacket);