Re: [PATCH] tlclk: fix platform_device_register_simple() error check

From: Mark Gross
Date: Wed Nov 29 2006 - 16:23:16 EST


On Tue, Nov 28, 2006 at 03:08:30PM +0900, Akinobu Mita wrote:
> On Mon, Nov 27, 2006 at 12:34:52PM -0800, Mark Gross wrote:
> > >
> > > tlclk_device = platform_device_register_simple("telco_clock",
> > > -1, NULL, 0);
> > > - if (!tlclk_device) {
> > > + if (IS_ERR(tlclk_device)) {
> > ok
> >
> > > printk(KERN_ERR "tlclk: platform_device_register failed.\n");
> > > - ret = -EBUSY;
> > > + ret = PTR_ERR(tlclk_device);
> >
> > I don't know about this but I could be wrong. Please convince me.
>
> We expect platform_device_register_simple() returns proper errno as pointer
> when it fails.

What's wrong with EBUSY?

--mgross
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