[PATCH 1/5] drivercore: add new error value for deferred probe

[Valdis.Kletnieks at vt.edu]

On Fri, 07 Oct 2011 16:12:45 MDT, Grant Likely said:
> On Fri, Oct 7, 2011 at 12:43 AM, Greg KH <greg at kroah.com> wrote:
> > On Fri, Oct 07, 2011 at 10:33:06AM +0500, G, Manjunath Kondaiah wrote:

> >> +#define EPROBE_DEFER 517     /* restart probe again after some time */
> >
> > Can we really do this?

> According to Arnd, yes this is okay.

> >  Isn't this some user/kernel api here?

> > What's wrong with just "overloading" on top of an existing error code?
> > Surely one of the other 516 types could be used here, right?

> overloading makes it really hard to find the users at a later date.

Would proposing '#define EPROBE_DEFER EAGAIN' be acceptable to everybody? That
would allow overloading EAGAIN, but still make it easy to tell the usages apart
if we need to separate them later...

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