usb: ehci: using wIndex + 1 for hub port

commit 5cbcc35e5bf0eae3c7494ce3efefffc9977827ae upstream.

The roothub's index per controller is from 0, but the hub port index per hub
is from 1, this patch fixes "can't find device at roohub" problem for connecting
test fixture at roohub when do USB-IF Embedded Host High-Speed Electrical Test.

This patch is for v3.12+.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index 7ae0c4d..7d6f64c 100644 (file)
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -1239,7 +1239,7 @@ static int ehci_hub_control (
                        if (selector == EHSET_TEST_SINGLE_STEP_SET_FEATURE) {
                                spin_unlock_irqrestore(&ehci->lock, flags);
                                retval = ehset_single_step_set_feature(hcd,
-                                                                       wIndex);
+                                                               wIndex + 1);
                                spin_lock_irqsave(&ehci->lock, flags);
                                break;
                        }