Jacek Caban : wininet: Don' t use returned read size if read failed in gzip_read.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 7d8cf318a40ed01a496056e12fecf374b654e966
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=7d8cf318a40ed01a496056e12fecf374b654e966

Author: Jacek Caban <jacek at codeweavers.com>
Date:   Fri Apr  7 17:31:02 2017 +0200

wininet: Don't use returned read size if read failed in gzip_read.

Signed-off-by: Jacek Caban <jacek at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/wininet/http.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/wininet/http.c b/dlls/wininet/http.c
index fd58b1f..321d569 100644
--- a/dlls/wininet/http.c
+++ b/dlls/wininet/http.c
@@ -466,10 +466,10 @@ static DWORD gzip_read(data_stream_t *stream, http_request_t *req, BYTE *buf, DW
             }
             res = gzip_stream->parent_stream->vtbl->read(gzip_stream->parent_stream, req, gzip_stream->buf+gzip_stream->buf_size,
                     sizeof(gzip_stream->buf)-gzip_stream->buf_size, &current_read, allow_blocking);
-            gzip_stream->buf_size += current_read;
             if(res != ERROR_SUCCESS)
                 break;
 
+            gzip_stream->buf_size += current_read;
             if(!current_read) {
                 WARN("unexpected end of data\n");
                 gzip_stream->end_of_data = TRUE;