From 3b20fd83c73c22acfcb0c6663be747bd5c8b7011 Mon Sep 17 00:00:00 2001
From: Ryan CHEN <ryan.chen@st.com>
Date: Wed, 20 Aug 2008 13:00:17 -0400
Subject: Correct drv_usb_kbd_init function

The patch is that check if usb_get_dev_index() function return valid
pointer. If valid, continue. Otherwise return -1.

Signed-off-by: Ryan Chen <ryan.chen@st.com>
Acked-by: Markus Klotzbuecher <mk@denx.de>
---
 common/usb_kbd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/common/usb_kbd.c b/common/usb_kbd.c
index 108bd60..920bb0f 100644
--- a/common/usb_kbd.c
+++ b/common/usb_kbd.c
@@ -162,6 +162,8 @@ int drv_usb_kbd_init(void)
 	/* scan all USB Devices */
 	for(i=0;i<USB_MAX_DEVICE;i++) {
 		dev=usb_get_dev_index(i); /* get device */
+		if(dev == NULL)
+			return -1;
 		if(dev->devnum!=-1) {
 			if(usb_kbd_probe(dev,0)==1) { /* Ok, we found a keyboard */
 				/* check, if it is already registered */
-- 
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