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From: "Daniel P. Berrange" <berrange@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Gerd Hoffmann" <kraxel@redhat.com>,
	"Marc-André Lureau" <marcandre.lureau@redhat.com>,
	"P J P" <ppandit@redhat.com>,
	"Daniel P. Berrange" <berrange@redhat.com>
Subject: [Qemu-devel] [PATCH v1 02/13] ui: remove unreachable code in vnc_update_client
Date: Mon, 18 Dec 2017 19:12:17 +0000	[thread overview]
Message-ID: <20171218191228.31018-3-berrange@redhat.com> (raw)
In-Reply-To: <20171218191228.31018-1-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>
---
 ui/vnc.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/ui/vnc.c b/ui/vnc.c
index 7ba3297dfa..869c75bbcf 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;
 }
 
-- 
2.14.3

  parent reply	other threads:[~2017-12-18 19:13 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-18 19:12 [Qemu-devel] [PATCH v1 00/13] Fix VNC server unbounded memory usage Daniel P. Berrange
2017-12-18 19:12 ` [Qemu-devel] [PATCH v1 01/13] ui: remove 'sync' parametr from vnc_update_client Daniel P. Berrange
     [not found]   ` <20171219072629.4c23icd27ggxayc5@starbug-vm.ie.oracle.com>
2017-12-19 10:32     ` Daniel P. Berrange
2018-01-08 11:08   ` Gerd Hoffmann
2018-01-10 13:55     ` Daniel P. Berrange
2018-01-12 11:48       ` Gerd Hoffmann
2017-12-18 19:12 ` Daniel P. Berrange [this message]
2017-12-18 19:12 ` [Qemu-devel] [PATCH v1 03/13] ui: remove redundant indentation in vnc_client_update Daniel P. Berrange
2017-12-18 19:12 ` [Qemu-devel] [PATCH v1 04/13] ui: avoid pointless VNC updates if framebuffer isn't dirty Daniel P. Berrange
2017-12-18 19:12 ` [Qemu-devel] [PATCH v1 05/13] ui: track how much decoded data we consumed when doing SASL encoding Daniel P. Berrange
2017-12-18 19:12 ` [Qemu-devel] [PATCH v1 06/13] ui: introduce enum to track VNC client framebuffer update request state Daniel P. Berrange
2017-12-18 19:12 ` [Qemu-devel] [PATCH v1 07/13] ui: correctly reset framebuffer update state after processing dirty regions Daniel P. Berrange
2017-12-18 19:12 ` [Qemu-devel] [PATCH v1 08/13] ui: refactor code for determining if an update should be sent to the client Daniel P. Berrange
2017-12-18 19:12 ` [Qemu-devel] [PATCH v1 09/13] ui: fix VNC client throttling when audio capture is active Daniel P. Berrange
2017-12-18 19:12 ` [Qemu-devel] [PATCH v1 10/13] ui: fix VNC client throttling when forced update is requested Daniel P. Berrange
2017-12-19 17:57   ` Marc-André Lureau
2017-12-19 18:07     ` Daniel P. Berrange
2017-12-18 19:12 ` [Qemu-devel] [PATCH v1 11/13] ui: place a hard cap on VNC server output buffer size Daniel P. Berrange
2017-12-20 11:32   ` Marc-André Lureau
2017-12-20 11:38     ` Daniel P. Berrange
2017-12-18 19:12 ` [Qemu-devel] [PATCH v1 12/13] ui: add trace events related to VNC client throttling Daniel P. Berrange
2017-12-18 19:12 ` [Qemu-devel] [PATCH v1 13/13] ui: mix misleading comments & return types of VNC I/O helper methods Daniel P. Berrange
2017-12-19  8:01 ` [Qemu-devel] [PATCH v1 00/13] Fix VNC server unbounded memory usage Darren Kenny
2017-12-19 14:57 ` Marc-André Lureau
2017-12-19 15:23   ` Daniel P. Berrange
2017-12-20 11:57 ` Marc-André Lureau

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