This eliminates a use of monitor_is_qmp() from the error reporting
path.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
 util/error-report.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/util/error-report.c b/util/error-report.c
index bbea49a55d..b0e062da9f 100644
--- a/util/error-report.c
+++ b/util/error-report.c
@@ -223,16 +223,15 @@ char *real_time_iso8601(void)
 G_GNUC_PRINTF(2, 0)
 static void vreport(report_type type, const char *fmt, va_list ap)
 {
-    Monitor *cur = monitor_cur();
-    gchar *timestr;
-
     /*
      * When current monitor is QMP, messages must go to stderr
-     * and have prefixes added
+     * and have prefixes added, so we cast to HMP, leaving 'cur'
+     * as NULL in QMP case
      */
-    if (monitor_cur_is_qmp()) {
-        cur = NULL;
-    }
+    Monitor *cur = MONITOR(
+        object_dynamic_cast(OBJECT(monitor_cur()), TYPE_MONITOR_HMP));
+    gchar *timestr;
+
     if (!cur) {
         qemu_flockfile(stderr);
     }
-- 
2.53.0