[Qemu-devel] [PATCH] virtio-net: fix the memory leak in rxfilter_notify()

[Amos Kong <akong@redhat.com>]

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

Signed-off-by: Amos Kong <akong@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 613f144..2b2fb57 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -198,15 +198,14 @@ static void rxfilter_notify(NetClientState *nc)
 {
     QObject *event_data;
     VirtIONet *n = qemu_get_nic_opaque(nc);
+    gchar *path = object_get_canonical_path(OBJECT(n->qdev));
 
     if (nc->rxfilter_notify_enabled) {
         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);
@@ -214,6 +213,7 @@ static void rxfilter_notify(NetClientState *nc)
         /* disable event notification to avoid events flooding */
         nc->rxfilter_notify_enabled = 0;
     }
+    g_free(path);
 }
 
 static char *mac_strdup_printf(const uint8_t *mac)
-- 
1.8.3.1