Re: [PATCH 1/9] USB usbfs: take a reference to the usb device

From: Greg KH
Date: Mon Apr 26 2004 - 18:13:56 EST


On Mon, Apr 26, 2004 at 04:05:17PM +0200, Duncan Sands wrote:
> diff -Nru a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
> --- a/drivers/usb/core/devio.c Mon Apr 26 13:48:28 2004
> +++ b/drivers/usb/core/devio.c Mon Apr 26 13:48:28 2004
> @@ -350,8 +350,8 @@
> * all pending I/O requests; 2.6 does that.
> */
>
> - if (ifnum < 8*sizeof(ps->ifclaimed))
> - clear_bit(ifnum, &ps->ifclaimed);
> + BUG_ON(ifnum >= 8*sizeof(ps->ifclaimed));

I've changed that to a WARN_ON(). Yeah, writing over memory is bad, but
oopsing is worse. Let's be a bit nicer than that.

thanks,

greg k-h
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