core: change return value of the unit's enumerate() call to void

We cannot handle enumeration failures in a sensible way, hence let's try
hard to continue without making such failures fatal, and log about it
with precise error messages.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/core/unit.h b/src/core/unit.h
index 6f775c5ce1..eb2af229b5 100644
--- a/src/core/unit.h
+++ b/src/core/unit.h
@@ -389,7 +389,7 @@ struct UnitVTable {
          * everything that is loaded here should still stay in
          * inactive state. It is the job of the coldplug() call above
          * to put the units into the initial state.  */
-        int (*enumerate)(Manager *m);
+        void (*enumerate)(Manager *m);
 
         /* Type specific cleanups. */
         void (*shutdown)(Manager *m);