[U-Boot] [PATCH] common: usb: fix checking condition

[Marek Vasut]

On Tuesday, January 12, 2016 at 08:57:01 AM, Peng Fan wrote:
> From: Peng Fan <peng.fan at nxp.com>
> 
> We support max USB_MAXENDPOINTS, so need to use
> "epno >= USB_MAXENDPOINTS", but not "epno > USB_MAXENDPOINTS".
> If use ">", we may exceeds the array of if_desc->ep_desc.
> 
> Signed-off-by: Peng Fan <peng.fan at nxp.com>
> Cc: Simon Glass <sjg at chromium.org>
> Cc: Hans de Goede <hdegoede at redhat.com>
> Cc: Marek Vasut <marex at denx.de>
> Cc: Paul Kocialkowski <contact at paulk.fr>
> Cc: "Stefan Brüns" <stefan.bruens at rwth-aachen.de>
> Cc: Vincent Palatin <vpalatin at chromium.org>

Acked-by: Marek Vasut <marex at denx.de>

> ---
>  common/usb.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/common/usb.c b/common/usb.c
> index 9f67cc1..c7b8b0e 100644
> --- a/common/usb.c
> +++ b/common/usb.c
> @@ -456,7 +456,7 @@ static int usb_parse_config(struct usb_device *dev,
>  			}
>  			epno = dev->config.if_desc[ifno].no_of_ep;
>  			if_desc = &dev->config.if_desc[ifno];
> -			if (epno > USB_MAXENDPOINTS) {
> +			if (epno >= USB_MAXENDPOINTS) {
>  				printf("Interface %d has too many endpoints!\n",
>  					if_desc->desc.bInterfaceNumber);
>  				return -EINVAL;

Best regards,
Marek Vasut