journalctl: explicitly check < 0 for error

diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c
index 15f3f0e025dad71eb6c4c550f7c58982f3c076e8..898e08774a26ab8922110a4c61345a838e894ddd 100644 (file)
--- a/src/journal/journalctl.c
+++ b/src/journal/journalctl.c
@@ -344,7 +344,7 @@ static int help_facilities(void) {
         for (int i = 0; i < LOG_NFACILITIES; i++) {
                 _cleanup_free_ char *t = NULL;
 
-                if (log_facility_unshifted_to_string_alloc(i, &t))
+                if (log_facility_unshifted_to_string_alloc(i, &t) < 0)
                         return log_oom();
                 puts(t);
         }