[Qemu-devel] [PULL 03/14] ui: remove unreachable code in vnc_update_client

From: Gerd Hoffmann <kraxel@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Daniel P. Berrange" <berrange@redhat.com>,
	Gerd Hoffmann <kraxel@redhat.com>
Subject: [Qemu-devel] [PULL 03/14] ui: remove unreachable code in vnc_update_client
Date: Fri, 12 Jan 2018 13:58:43 +0100	[thread overview]
Message-ID: <20180112125854.18261-4-kraxel@redhat.com> (raw)
In-Reply-To: <20180112125854.18261-1-kraxel@redhat.com>

From: "Daniel P. Berrange" <berrange@redhat.com>

A previous commit:

  commit 5a8be0f73d6f60ff08746377eb09ca459f39deab
  Author: Gerd Hoffmann <kraxel@redhat.com>
  Date:   Wed Jul 13 12:21:20 2016 +0200

    vnc: make sure we finish disconnect

Added a check for vs->disconnecting at the very start of the
vnc_update_client method. This means that the very next "if"
statement check for !vs->disconnecting always evaluates true,
and is thus redundant. This in turn means the vs->disconnecting
check at the very end of the method never evaluates true, and
is thus unreachable code.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20171218191228.31018-3-berrange@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 ui/vnc.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/ui/vnc.c b/ui/vnc.c
index d72a61bde3..29a7208475 100644
--- a/ui/vnc.c
+++ b/ui/vnc.c
@@ -969,7 +969,7 @@ static int vnc_update_client(VncState *vs, int has_dirty)
     }
 
     vs->has_dirty += has_dirty;
-    if (vs->need_update && !vs->disconnecting) {
+    if (vs->need_update) {
         VncDisplay *vd = vs->vd;
         VncJob *job;
         int y;
@@ -1030,10 +1030,6 @@ static int vnc_update_client(VncState *vs, int has_dirty)
         return n;
     }
 
-    if (vs->disconnecting) {
-        vnc_disconnect_finish(vs);
-    }
-
     return 0;
 }
 
-- 
2.9.3
