[LTP] [PATCH] API: Give user hint when checkpoints were not initialised

[Cyril Hrubis]

Hi!
> > Currently the user gets an error about EOVERFLOW. This will hopefully
> > save some searching.
> 
> Nice! I'm for merging it before release (with that fixed whitespace).

Looks safe enough, I will fix the whitespaces and apply.

-- 
Cyril Hrubis
chrubis@suse.cz