From 7ce86aa1aafaa65e7d3e572873bdf37bdb896f49 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 28 Aug 2012 11:50:26 +0200 Subject: [PATCH] ehci: Fix NULL ptr deref when unplugging an USB dev with an iso stream active Signed-off-by: Hans de Goede --- hw/usb/hcd-ehci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c index f43d690eb..a3aea6deb 100644 --- a/hw/usb/hcd-ehci.c +++ b/hw/usb/hcd-ehci.c @@ -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); -- 2.39.2