More cleanup in error handling.

regress/fopen_unchanged.c

diff --git a/regress/fopen_unchanged.c b/regress/fopen_unchanged.c
index 1d4b5fa..232536d 100644
--- a/regress/fopen_unchanged.c
+++ b/regress/fopen_unchanged.c
@@ -71,13 +71,15 @@
     }
 
     if (zip_add(za, file, zs) == -1) {
-	zip_source_free(zs);
 	fprintf(stderr, "can't add file '%s': %s\n", file, zip_strerror(za));
+	(void)zip_source_free(zs);
+	(void)zip_close(za);
 	return 1;
     }
 
     if (zip_fopen(za, file, ZIP_FL_UNCHANGED) == NULL) {
 	fprintf(stderr, "can't zip_fopen file '%s': %s\n", file, zip_strerror(za));
+	(void)zip_discard(za);
 	return 1;
     }