Return value for "impossible" situations

Ian Pilcher arequipeno at
Sun Jul 25 15:13:25 EDT 2021

On 7/25/21 1:59 PM, Bernd Petrovitsch wrote:
> This value goes up to userspace (otherwise it makes no real sense to use
> errno-values).

Yes.  I know that.

> That depends on the situation/sys-call/....
> You habe to choose the value (the list and short explanation is in `man
> errno`) which leads the userspace application and it's user in the best
> direction.

Yes.  I've already reviewed the manpage and the kernel headers, and I
don't see anything that jumps out as appropriate for an unexpected
"logic" error.

Thus my question about a convention for this sort of situation.

> And no, you can't invent new values.

I know.

                  In Soviet Russia, Google searches you!

More information about the Kernelnewbies mailing list