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.
Cc: <sta...@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.ny...@linux.intel.com>
---
drivers/usb/host/xhci.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 2abaa4d..e96e90d 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1681,7 +1681,7 @@ 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;
--
1.9.1
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