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From: Amos Kong <akong@redhat.com>
Date: Sat, 23 Nov 2013 03:17:43 +0100
Subject: [PATCH 03/16] virtio-net: fix the memory leak in rxfilter_notify()
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RH-Author: Amos Kong <akong@redhat.com>
Message-id: <1385176664-3852-2-git-send-email-akong@redhat.com>
Patchwork-id: 55866
O-Subject: [RHEL-7.0 qemu-kvm PATCH 1/2] virtio-net: fix the memory leak in rxfilter_notify()
Bugzilla: 1033810
RH-Acked-by: Vlad Yasevich <vyasevic@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Igor Mammedov <imammedo@redhat.com>

object_get_canonical_path() returns a gchar*, it should be freed by the
caller.

Signed-off-by: Amos Kong <akong@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Vlad Yasevich <vyasevic@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
(cherry picked from commit 96e35046e4a97df5b4e1e24e217eb1e1701c7c71)
---
 hw/net/virtio-net.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

Signed-off-by: Michal Novotny <minovotn@redhat.com>
---
 hw/net/virtio-net.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index 3bc1eed..915aa70 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -200,16 +200,16 @@ static void rxfilter_notify(NetClientState *nc)
     VirtIONet *n = qemu_get_nic_opaque(nc);
 
     if (nc->rxfilter_notify_enabled) {
+        gchar *path = object_get_canonical_path(OBJECT(n->qdev));
         if (n->netclient_name) {
             event_data = qobject_from_jsonf("{ 'name': %s, 'path': %s }",
-                                    n->netclient_name,
-                                    object_get_canonical_path(OBJECT(n->qdev)));
+                                    n->netclient_name, path);
         } else {
-            event_data = qobject_from_jsonf("{ 'path': %s }",
-                                    object_get_canonical_path(OBJECT(n->qdev)));
+            event_data = qobject_from_jsonf("{ 'path': %s }", path);
         }
         monitor_protocol_event(QEVENT_NIC_RX_FILTER_CHANGED, event_data);
         qobject_decref(event_data);
+        g_free(path);
 
         /* disable event notification to avoid events flooding */
         nc->rxfilter_notify_enabled = 0;
-- 
1.7.11.7