From: Timo Sirainen <timo.sirainen@open-xchange.com>
Date: Mon, 4 Oct 2021 10:37:11 +0000 (+0200)
Subject: lib-compression: ostream-zlib - Fix non-blocking gz header write
X-Git-Tag: 2.3.18~270
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1e56bbb41b424254b7ee5ef2ed991c2d9242ae4a;p=thirdparty%2Fdovecot%2Fcore.git

lib-compression: ostream-zlib - Fix non-blocking gz header write

Broken by 373dc6a93da1f6a0ad0c80dbb72566c2b3a295f2
---

diff --git a/src/lib-compression/ostream-zlib.c b/src/lib-compression/ostream-zlib.c
index b93895d79b..82c5a03a6c 100644
--- a/src/lib-compression/ostream-zlib.c
+++ b/src/lib-compression/ostream-zlib.c
@@ -142,7 +142,7 @@ o_stream_zlib_send_chunk(struct zlib_ostream *zstream,
 
 	if (zstream->header_bytes_left > 0) {
 		if ((ret = o_stream_zlib_send_gz_header(zstream)) <= 0)
-			return -1;
+			return ret;
 	}
 
 	zs->next_in = (void *)data;