On 07/02/2018 11:22 AM, Markus Armbruster wrote:
monitor_qmp_dispatch_one() frees a QMPRequest manually, because it
needs to keep a reference to ->id.  Premature optimization.  Take an
additional reference so we can use qmp_request_free().

Signed-off-by: Markus Armbruster <arm...@redhat.com>
---
  monitor.c | 6 ++----
  1 file changed, 2 insertions(+), 4 deletions(-)


Reviewed-by: Eric Blake <ebl...@redhat.com>

diff --git a/monitor.c b/monitor.c
index 10991757f6..94f5660c3c 100644
--- a/monitor.c
+++ b/monitor.c
@@ -4181,8 +4181,6 @@ static void monitor_qmp_dispatch_one(QMPRequest *req_obj)
      id = req_obj->id;
      need_resume = req_obj->need_resume;
- g_free(req_obj);
-
      old_mon = cur_mon;
      cur_mon = mon;
@@ -4191,14 +4189,14 @@ static void monitor_qmp_dispatch_one(QMPRequest *req_obj)
      cur_mon = old_mon;
/* Respond if necessary */
-    monitor_qmp_respond(mon, rsp, NULL, id);
+    monitor_qmp_respond(mon, rsp, NULL, qobject_ref(id));

This requires qobject_ref(NULL) to work (I thought at one point we were considering requiring it to be a non-NULL argument, but right now it looks like we are safe).

--
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

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