On Sat, Nov 22, 2014 at 07:46:25PM +0100, Pali Rohár wrote:
> > > 0 Completed successfully
> > > -1 Completed with error
> > > -2 Function not supported
> > >
> > > So we can return something other too (not always -EINVAL).
> > > Do you have any idea which errno should we return for -1
> > > and -2?
> >
> > For -1, I should think -EIO (I/O Error)
> > For -2, I'd expect -ENXIO (No such device or address)
> >
>
> What about -ENOSYS for -2?
No. This specific topic came up at kernel summit this year. ENOSYS is
specifically for not implemented system calls.
>
> > > > > + if (convert) {
> > > > > + /* NOTE: this switch fall down */
> > > >
> > > > "fall down" ? As in, it intentionally doesn't have breaks?
> > >
> > > This code convert "value" in "units" to new value in minutes
> > > units. So for unit == days it is: 24*60*60... So no breaks.
> >
> > Right, so the language of the comment just wasn't clear, try:
> >
> > /* Convert value from seconds to minutes */
> >
>
> Err... to seconds :-) But OK, I will change comment.
Oops, duh.
/* Convert value from current units to seconds. */
>
> > > > > + switch (unit) {
> > > > > + case KBD_TIMEOUT_DAYS:
> > > > > + value *= 24;
> > > > > + case KBD_TIMEOUT_HOURS:
> > > > > + value *= 60;
> > > > > + case KBD_TIMEOUT_MINUTES:
> > > > > + value *= 60;
> > > > > + unit = KBD_TIMEOUT_SECONDS;
> > > > > + }
--
Darren Hart
Intel Open Source Technology Center
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