From: Ilya Leoshkevich <iii@linux.ibm.com>
Date: Thu, 13 Aug 2020 09:50:46 +0000 (+0200)
Subject: Fix DFLTCC ignoring flush modes when avail_in == 0
X-Git-Tag: 1.9.9-b1~83
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=40acb3fe1e79a3ca441ef38325a357e02fc96a6d;p=thirdparty%2Fzlib-ng.git

Fix DFLTCC ignoring flush modes when avail_in == 0
---

diff --git a/arch/s390/dfltcc_deflate.c b/arch/s390/dfltcc_deflate.c
index a088a731..4692789f 100644
--- a/arch/s390/dfltcc_deflate.c
+++ b/arch/s390/dfltcc_deflate.c
@@ -135,7 +135,8 @@ again:
         /* Clear history. */
         if (flush == Z_FULL_FLUSH)
             param->hl = 0;
-        *result = need_more;
+        /* Trigger block post-processing if necessary. */
+        *result = no_flush ? need_more : block_done;
         return 1;
     }