man,journal: add note about sd_journal_get_cutoff_monotonic_usec return value

Also modify the function itself to be a bit simpler to read.

1 files changed, 8 insertions, 8 deletions

diff --git a/src/journal/sd-journal.c b/src/journal/sd-journal.c
index f674abf9d..6349aeb78 100644
--- a/src/journal/sd-journal.c
+++ b/src/journal/sd-journal.c
@@ -2399,7 +2399,7 @@ _public_ int sd_journal_get_cutoff_realtime_usec(sd_journal *j, uint64_t *from,
 _public_ int sd_journal_get_cutoff_monotonic_usec(sd_journal *j, sd_id128_t boot_id, uint64_t *from, uint64_t *to) {
         Iterator i;
         JournalFile *f;
-        bool first = true;
+        bool found = false;
         int r;
 
         assert_return(j, -EINVAL);
@@ -2418,21 +2418,21 @@ _public_ int sd_journal_get_cutoff_monotonic_usec(sd_journal *j, sd_id128_t boot
                 if (r == 0)
                         continue;
 
-                if (first) {
+                if (found) {
                         if (from)
-                                *from = fr;
+                                *from = MIN(fr, *from);
                         if (to)
-                                *to = t;
-                        first = false;
+                                *to = MAX(t, *to);
                 } else {
                         if (from)
-                                *from = MIN(fr, *from);
+                                *from = fr;
                         if (to)
-                                *to = MAX(t, *to);
+                                *to = t;
+                        found = true;
                 }
         }
 
-        return first ? 0 : 1;
+        return found;
 }
 
 void journal_print_header(sd_journal *j) {