From e06a055bcd966adf62a5653c84db781915392e41 Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Date: Sat, 27 Feb 2010 21:32:17 +0300
Subject: [PATCH] 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>
---
drivers/usb/host/ehci-hcd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index e48819f32e4..d90a23a1f1c 100644
--- 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;
--
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