From: Aki Tuomi <aki.tuomi@open-xchange.com>
Date: Tue, 3 Mar 2020 11:21:21 +0000 (+0200)
Subject: lib-compress: ostream-zlib - Make sure finished stream is fully flushed
X-Git-Tag: 2.3.11.2~562
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3d059c624c538be661420c27cc6121edcc6da97f;p=thirdparty%2Fdovecot%2Fcore.git

lib-compress: ostream-zlib - Make sure finished stream is fully flushed
---

diff --git a/src/lib-compression/ostream-zlib.c b/src/lib-compression/ostream-zlib.c
index 67584d4667..306655544c 100644
--- a/src/lib-compression/ostream-zlib.c
+++ b/src/lib-compression/ostream-zlib.c
@@ -176,7 +176,7 @@ o_stream_zlib_send_flush(struct zlib_ostream *zstream, bool final)
 	i_assert(zs->avail_in == 0);
 
 	if (zstream->flushed)
-		return 0;
+		return 1;
 
 	if ((ret = o_stream_flush_parent_if_needed(&zstream->ostream)) <= 0)
 		return ret;