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Date: Fri, 17 Feb 2012 11:42:56 +0200
From: "Michael S. Tsirkin" <mst@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH 2/2] pci: rewrite devaddr parsing
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To: malc <av1474@comtv.ru>
Cc: qemu-devel@nongnu.org

On Thu, Feb 16, 2012 at 11:23:40PM +0400, malc wrote:
> > +{
> > +    unsigned dom, bus, slot, func;
> > +    int n = -1;
> > +
> > +    /* Parse [[<domain>:]<bus>:]<slot> */
> > +    sscanf(addr, "%x:%x:%x%n", &dom, &bus, &slot, &n);
> 
> sscanf can fail.
> 
> > +    if (n == -1) {


If it does n will stay -1.