On Fri, 1 Apr 2016, Paulina Szubarczyk wrote:

>  - Use EXIT_{SUCCESS,FAILURE} for main_cd*() function
>  - Use 0/1 as return values of cd_insert function
> 
> Signed-off-by: Paulina Szubarczyk <paulinaszubarczyk@gmail.com>

LGTM, although I would prefer that the return value of cd_insert is stored 
in a local variable and then checked. I don't think this should block the 
patch, since it's an improvement overall:

Acked-by: Roger Pau Monné <roger.pau@citrix.com>

Roger.