What's the use of FEATURE_CLEANUP ?

[Ignacio García Pérez]

Hi,

In which cases it is actually useful to do a cleanup (deallocate memory,
close handles) ?.

I ask because I recently had to delve into the source of mount to fix
some issues, and noticed that even if the cleanup feature is enabled,
almost evety bb_*_die call I found was not worrying about cleanup. I
would say if someone actually needs cleanup, it'll need it always,
including error situations, right?.