Am Mittwoch, 13. Oktober 2010, 19:34:48 schrieb Alan Stern:
> On Wed, 13 Oct 2010, Oliver Neukum wrote:
>
> > Hi,
> >
> > drivers need to return errors to user space.
> > A common source for them are urb->status and the
> > return value of usb_submit_urb(). They cannot be returned as
> > is to user space, as for example -EPIPE has a very
> > different meaning in user space. I'd like to add this small
> > helper for conversion.
> > What do you think?
> >
> > Regards
> > Oliver
> >
> >
> > +/* translate USB error codes to codes user space understands */
> > +static inline int usb_translate_errors(int error_code)
> > +{
> > + switch (error_code) {
> > + case 0:
> > + case -ENOMEM:
> > + case -ENODEV:
> > + return error_code;
> > + default:
> > + return -EIO;
> > + }
> > +}
>
> Should this be a non-inline function?
I am agnostic on that. It just seemed simple enough to inline.
Regards
Oliver
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