On Wed, Jul 27, 2011 at 10:03:15AM +0200, Sascha Hauer wrote:
> On Wed, Jul 27, 2011 at 01:29:33PM +0800, Tony Lin wrote:
> > + if (!ppriv->phy_regs || !ppriv->ctrl_regs) {
> > + iounmap(ppriv->phy_regs);
> > + iounmap(ppriv->ctrl_regs);
> > + return -ENOMEM;
> > + }
>
> So you call iounmap(0) here.
That is not a problem. iounmap() is like kfree(). It's designed to cope
with NULL.
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