[PATCH 4/4] video/imx: always initialize offscreenbuf member

Sascha Hauer s.hauer at pengutronix.de
Thu Jan 17 12:55:11 EST 2013


On Thu, Jan 17, 2013 at 02:04:22PM +0100, Daniel Mierswa wrote:
> On 01/17/2013 12:56 PM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > On 07:32 Thu 17 Jan     , Daniel Mierswa wrote:
> >> +	/*
> >> +	 * sc.offscreenbuf is dangling here, if no offscreen buffer was
> >> +	 * requested, so set it to NULL otherwise the free in fd_close
> >> +	 * will cause undefined behaviour
> >> +	 */
> >> +	if (!offscreen)
> >> +		sc.offscreenbuf = NULL;
> >> +
> > NAck
> > 
> > this is already done by memset
> > 
> > Best Regards,
> > J.
> >>  	if (sc.offscreenbuf) {
> >>  		if (do_bg)
> >>  			memset_pixel(&info, sc.offscreenbuf, bg_color,
> 
> Huh? I don't get it.

sc is initialized to 0 in do_splash:

	memset(&s, 0, sizeof(s));
	memset(&sc, 0, sizeof(sc));
	memset(&info, 0, sizeof(info));

so sc.offscreenbuf = NULL is a no-op.

Sascha


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