- if (r < 0)
- log_debug("Prepare callback of event source %p returned error, disabling: %s", s, strerror(-r));
+ if (r < 0) {
+ if (s->name)
+ log_debug("Prepare callback of event source '%s' returned error, disabling: %s", s->name, strerror(-r));
+ else
+ log_debug("Prepare callback of event source %p returned error, disabling: %s", s, strerror(-r));
+ }