Merge branch 'for-usb-linus' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-linus

* 'for-usb-linus' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/sarah/xhci:
  xhci: Handle zero-length isochronous packets.
  USB: Avoid NULL pointer deref in usb_hcd_alloc_bandwidth.
  xhci: Remove TDs from TD lists when URBs are canceled.
  xhci: Fix failed enqueue in the middle of isoch TD.
  xhci: Fix memory leak during failed enqueue.
  xHCI: report USB2 port in resuming as suspend
  xHCI: fix port U3 status check condition

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 8669ba3fe794..73cbbd85219f 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1775,6 +1775,8 @@ int usb_hcd_alloc_bandwidth(struct usb_device *udev,
                 struct usb_interface *iface = usb_ifnum_to_if(udev,
                                 cur_alt->desc.bInterfaceNumber);
 
+                if (!iface)
+                        return -EINVAL;
                 if (iface->resetting_device) {
                         /*
                          * The USB core just reset the device, so the xHCI host