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From: Mike Frysinger <vapier@gentoo.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v3 1/3] net: Adds Fast Ethernet Controller driver for Armada100
Date: Mon, 29 Aug 2011 01:30:13 -0400	[thread overview]
Message-ID: <201108290130.14251.vapier@gentoo.org> (raw)
In-Reply-To: <1181873733.14337.1314594649534.JavaMail.root@ahm.einfochips.com>

On Monday, August 29, 2011 01:10:49 Ajay Bhargav wrote:
> ----- "Mike Frysinger" <vapier@gentoo.org> wrote:
> > On Friday, August 26, 2011 02:36:51 Ajay Bhargav wrote:
> > > +        darmdfec = malloc(sizeof(struct armdfec_device));
> > > +        if (!darmdfec)
> > > +                goto error;
> > 
> > if this first one fails, we jump to:
> > > +error:
> > > +        free(darmdfec->p_aligned_txbuf);
> > > +        free(darmdfec->p_rxbuf);
> > > +        free(darmdfec->p_rxdesc);
> > > +        free(darmdfec->htpr);
> > 
> > looks like 4 NULL pointer derefs.  so you'll need one specific path
> > for the first malloc(), but the rest are fine.
> 
> so you mean like this...
> 
> if(!darmdfec)
>         goto error;
> ...
> error1:
>         free(darmdfec->p_aligned_txbuf);
>         free(darmdfec->p_rxbuf);
>         free(darmdfec->p_rxdesc);
>         free(darmdfec->htpr);
> error:
>         free(darmdfec);
>         return -1;

that's one way of fixing it
-mike
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  reply	other threads:[~2011-08-29  5:30 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <706935361.14309.1314594441316.JavaMail.root@ahm.einfochips.com>
2011-08-29  5:10 ` [U-Boot] [PATCH v3 1/3] net: Adds Fast Ethernet Controller driver for Armada100 Ajay Bhargav
2011-08-29  5:30   ` Mike Frysinger [this message]
2011-08-29  5:39     ` Ajay Bhargav
2011-08-29 10:12       ` Marek Vasut
2011-08-29 19:39       ` Mike Frysinger
2011-08-30  5:15         ` Ajay Bhargav
     [not found] <274121072.14489.1314595589918.JavaMail.root@ahm.einfochips.com>
2011-08-29  5:26 ` Ajay Bhargav
2011-08-26  6:36 Ajay Bhargav
2011-08-26 15:32 ` Marek Vasut
2011-08-26 20:01 ` Mike Frysinger

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