Hi Borislav,
On Mon, Nov 8, 2021 at 4:59 PM Borislav Petkov <b...@alien8.de> wrote:
> On Mon, Nov 08, 2021 at 04:25:47PM +0100, Geert Uytterhoeven wrote:
> > I'm not against returning proper errors codes. I'm against forcing
> > callers to check things that cannot fail and to add individual error
> > printing to each and every caller.
>
> If you're against checking things at the callers, then the registration
> function should be void. IOW, those APIs are not optimally designed atm.
Returning void is the other extreme ;-)
There are 3 levels (ignoring BUG_ON()/panic () inside the callee):
1. Return void: no one can check success or failure,
2. Return an error code: up to the caller to decide,
3. Return a __must_check error code: every caller must check.
I'm in favor of 2, as there are several places where it cannot fail.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
