EHCI: fix off-by-one error in ehci_submit_root()

USB devices on the 2nd port are not detected and I get the following message:

The request port(1) is not configured

That's with default CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS value of 2. 'req->index'
is 1-based, so the comparison in ehci_submit_root() can't be correct.

Signed-off-by: Sergei Shtylyov <sshtylyov@mvista.com>

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index e48819f..d90a23a 100644 (file)
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -536,7 +536,7 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer,
        uint32_t reg;
        uint32_t *status_reg;
 
-       if (le16_to_cpu(req->index) >= CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS) {
+       if (le16_to_cpu(req->index) > CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS) {
                printf("The request port(%d) is not configured\n",
                        le16_to_cpu(req->index) - 1);
                return -1;