rocker: fix memory leak

Meanwhile, using g_new0 instead of g_malloc0,
refer to commit 5839e53.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Message-id: 1435213450-6700-1-git-send-email-arei.gonglei@huawei.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

hw/net/rocker/rocker.c

diff --git a/hw/net/rocker/rocker.c b/hw/net/rocker/rocker.c
index 4d25842..7e06015 100644
--- a/hw/net/rocker/rocker.c
+++ b/hw/net/rocker/rocker.c
@@ -96,7 +96,7 @@
 
 RockerSwitch *qmp_query_rocker(const char *name, Error **errp)
 {
-    RockerSwitch *rocker = g_malloc0(sizeof(*rocker));
+    RockerSwitch *rocker;
     Rocker *r;
 
     r = rocker_find(name);
@@ -106,6 +106,7 @@
         return NULL;
     }
 
+    rocker = g_new0(RockerSwitch, 1);
     rocker->name = g_strdup(r->name);
     rocker->id = r->switch_id;
     rocker->ports = r->fp_ports;