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
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -536,7 +536,7 @@
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;