Re: stv680 boolean logic bug.

[Olivier Galibert <galibert@pobox.com>]

On Thu, Jun 22, 2006 at 08:40:33PM -0400, Dave Jones wrote:
> This looks closer to what I believe the original intent was.
> (Also fixes line-len to meet CodingStyle)
> 
> Signed-off-by: Dave Jones <davej@redhat.com>
> 
> --- linux-2.6/drivers/media/video/stv680.c~	2006-06-22 20:38:21.000000000 -0400
> +++ linux-2.6/drivers/media/video/stv680.c	2006-06-22 20:39:02.000000000 -0400
> @@ -974,7 +974,8 @@ static void bayer_unshuffle (struct usb_
>  	frame->grabstate = FRAME_DONE;
>  	stv680->framecount++;
>  	stv680->readcount++;
> -	if (stv680->frame[(stv680->curframe + 1) & (STV680_NUMFRAMES - 1)].grabstate == FRAME_READY) {
> +	if (stv680->frame[(stv680->curframe + 1) &&
> +			(STV680_NUMFRAMES - 1)].grabstate == FRAME_READY) {
>  		stv680->curframe = (stv680->curframe + 1) & (STV680_NUMFRAMES - 1);
>  	}

That looks very wrong.  You're turning a circular buffer
into... whatever.

  OG.

-
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