This can be void. We could arguably drop the function and do this
inline, but using the function is more consistent with Got style imo.

ok?

diff /home/mark/src/got
commit - 568eae9578c8babb5be9eea6c85b9e016a6cdb29
path + /home/mark/src/got
blob - cb676e08ed97b46d2255d4e5b79240ed2b64d571
file + include/got_object.h
--- include/got_object.h
+++ include/got_object.h
@@ -353,5 +353,5 @@ const struct got_error *got_object_tag_create(struct g
     const char *, struct got_object_id *, const char *,
     time_t, const char *, const char *, struct got_repository *, int verbosity);
 
-const struct got_error *got_object_commit_dup(struct got_commit_object **,
+void got_object_commit_dup(struct got_commit_object **,
     struct got_commit_object *);
blob - 90b0dd61d77d94bbc79178c6692a4fc8946ce780
file + lib/object.c
--- lib/object.c
+++ lib/object.c
@@ -2354,11 +2354,10 @@ done:
 	return err;
 }
 
-const struct got_error *
+void
 got_object_commit_dup(struct got_commit_object **ret,
     struct got_commit_object *commit)
 {
 	*ret = commit;
 	commit->refcnt++;
-	return NULL;
 }
blob - 536b7b498bd4706495d95afcbdf091af274ce20d
file + tog/tog.c
--- tog/tog.c
+++ tog/tog.c
@@ -2226,11 +2226,8 @@ queue_commits(struct tog_log_thread_args *a)
 					    "alloc_commit_queue_entry");
 					break;
 				}
-
-				err = got_object_commit_dup(&matched->commit,
+				got_object_commit_dup(&matched->commit,
 				    entry->commit);
-				if (err)
-					break;
 
 				matched->idx = a->limit_commits->ncommits;
 				TAILQ_INSERT_TAIL(&a->limit_commits->head,
@@ -3041,14 +3038,8 @@ limit_log_view(struct tog_view *view)
 				    "alloc_commit_queue_entry");
 				break;
 			}
+			got_object_commit_dup(&matched->commit, entry->commit);
 
-			err = got_object_commit_dup(&matched->commit,
-			    entry->commit);
-			if (err) {
-				free(matched);
-				return err;
-			}
-
 			matched->idx = s->limit_commits.ncommits;
 			TAILQ_INSERT_TAIL(&s->limit_commits.head,
 			    matched, entry);

-- 
Mark Jamsek <fnc.bsdbox.org>
GPG: F2FF 13DE 6A06 C471 CA80  E6E2 2930 DC66 86EE CF68