smart: clarify error handling in git_smart__connect

src/transports/smart.c

@@ -279,14 +279,13 @@ static int git_smart__connect(
 		return error;
 
 	/* Detect capabilities */
-	if (git_smart__detect_caps(first, &t->caps, &symrefs) < 0) {
-		free_symrefs(&symrefs);
-		return -1;
+	if ((error = git_smart__detect_caps(first, &t->caps, &symrefs)) == 0) {
+		goto cleanup;
 	}
 
 	/* If the only ref in the list is capabilities^{} with OID_ZERO, remove it */
 	if (1 == t->refs.length && !strcmp(first->head.name, "capabilities^{}") &&
-		git_oid_iszero(&first->head.oid)) {
+	    git_oid_iszero(&first->head.oid)) {
 		git_vector_clear(&t->refs);
 		git_pkt_free((git_pkt *)first);
 	}
@@ -294,15 +293,17 @@ static int git_smart__connect(
 	/* Keep a list of heads for _ls */
 	git_smart__update_heads(t, &symrefs);
 
-	free_symrefs(&symrefs);
 
-	if (t->rpc && git_smart__reset_stream(t, false) < 0)
-		return -1;
+	if (t->rpc && (error = git_smart__reset_stream(t, false)) < 0)
+		goto cleanup;
 
 	/* We're now logically connected. */
 	t->connected = 1;
 
-	return 0;
+cleanup:
+	free_symrefs(&symrefs);
+
+	return error;
 }
 
 static int git_smart__ls(const git_remote_head ***out, size_t *size, git_transport *transport)