[PATCH v2 2/3] opcservices: Suppress unnecessary zlib deflate warnings.

[Danyil Blyschak]

From: Danyil Blyschak

Zlib documents that negative return values for this function are errors
and positive ones are special but normal events.
---
 dlls/opcservices/compress.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/opcservices/compress.c b/dlls/opcservices/compress.c
index 186469a782c..841c674c26c 100644
--- a/dlls/opcservices/compress.c
+++ b/dlls/opcservices/compress.c
@@ -257,7 +257,7 @@ static void compress_write_content(struct zip_archive *archive, IStream *content
             z_str.avail_out = sizeof(archive->output_buffer);
             z_str.next_out = archive->output_buffer;

-            if ((ret = deflate(&z_str, flush)))
+            if ((ret = deflate(&z_str, flush)) < 0)
                 WARN("Failed to deflate, ret %d.\n", ret);
             have = sizeof(archive->output_buffer) - z_str.avail_out;
             compress_write(archive, archive->output_buffer, have);