usb: ehci: using wIndex + 1 for hub port

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+. Cc: stable@vger.kernel.org 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>

usb: ehci: using wIndex + 1 for hub port
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+. Cc: stable@vger.kernel.org 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>
Peter Chen · Greg Kroah-Hartman · Eric Lee · Eric Lee · Eric Lee · Eric Lee
1 parent a7e69ddb10
Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff
drivers/usb/host/ehci-hub.c
@@ -1230,7 +1230,7 @@
 			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;
 			}
...	...	@@ -1230,7 +1230,7 @@
1230	1230	if (selector == EHSET_TEST_SINGLE_STEP_SET_FEATURE) {
1231	1231	spin_unlock_irqrestore(&ehci->lock, flags);
1232	1232	retval = ehset_single_step_set_feature(hcd,
1233		- wIndex);
	1233	+ wIndex + 1);
1234	1234	spin_lock_irqsave(&ehci->lock, flags);
1235	1235	break;
1236	1236	}