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authorRyan CHEN <ryan.chen@st.com>2008-08-20 13:00:17 -0400
committerWolfgang Denk <wd@denx.de>2008-09-09 17:02:59 +0200
commit3b20fd83c73c22acfcb0c6663be747bd5c8b7011 (patch)
tree30732e12d39390eda22338e98db7b8ab9025bf22 /common/usb_kbd.c
parenteba1f2fc75f128a9a6c1328d786996a93fd7a707 (diff)
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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>
Diffstat (limited to 'common/usb_kbd.c')
-rw-r--r--common/usb_kbd.c2
1 files changed, 2 insertions, 0 deletions
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 */