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authorMathias Nyman <mathias.nyman@linux.intel.com>2017-09-18 17:39:13 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-10-12 11:27:34 +0200
commit4590ed795f0ccb1401d515eaa5864166032a4cfb (patch)
treeb85ebacdbb22e92433bc42a73a4049a346a2de05 /drivers
parent13713e63bdb306f9a58d359b15edd60f34eac5ee (diff)
xhci: fix finding correct bus_state structure for USB 3.1 hosts
commit 5a838a13c9b4e5dd188b7a6eaeb894e9358ead0c upstream. xhci driver keeps a bus_state structure for each hcd (usb2 and usb3) The structure is picked based on hcd speed, but driver only compared for HCD_USB3 speed, returning the wrong bus_state for HCD_USB31 hosts. This caused null pointer dereference errors in bus_resume function. Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/host/xhci.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index fc2ee6c272c4..1715705acc59 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1490,7 +1490,7 @@ struct xhci_bus_state {
static inline unsigned int hcd_index(struct usb_hcd *hcd)
{
- if (hcd->speed == HCD_USB3)
+ if (hcd->speed >= HCD_USB3)
return 0;
else
return 1;