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authorHans de Goede <hdegoede@redhat.com>2012-08-28 11:50:26 +0200
committerMichael Roth <mdroth@linux.vnet.ibm.com>2012-09-05 10:30:38 -0500
commita8cd6f7ddfb9a8514170d79665669be8538d2f96 (patch)
treee4feb8d994113f553ad507a287dd9a14fef8031f
parentce4fc986e576536b0998a7f8e963c0932adda6d0 (diff)
ehci: Fix NULL ptr deref when unplugging an USB dev with an iso stream active
Signed-off-by: Hans de Goede <hdegoede@redhat.com> (cherry picked from commit 7ce86aa1aafaa65e7d3e572873bdf37bdb896f49) Conflicts: hw/usb/hcd-ehci.c Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
-rw-r--r--hw/usb/hcd-ehci.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c
index 41c9d84354..a511b4e83f 100644
--- a/hw/usb/hcd-ehci.c
+++ b/hw/usb/hcd-ehci.c
@@ -1465,7 +1465,7 @@ 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);
usb_packet_map(&ehci->ipacket, &ehci->isgl);
ret = usb_handle_packet(dev, &ehci->ipacket);