qapi: QMP input visitor, handle floats parsed as ints

JSON numbers can be interpreted as either integers or floating point
values depending on their representation. As a result, QMP input visitor
might visit a QInt when it was expecting a QFloat, so add handling to
account for this.
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Acked-by: NAndreas Färber <afaerber@suse.de>

qapi/qmp-input-visitor.c

@@ -246,13 +246,18 @@ static void qmp_input_type_number(Visitor *v, double *obj, const char *name,
     QmpInputVisitor *qiv = to_qiv(v);
     QObject *qobj = qmp_input_get_object(qiv, name);
 
-    if (!qobj || qobject_type(qobj) != QTYPE_QFLOAT) {
+    if (!qobj || (qobject_type(qobj) != QTYPE_QFLOAT &&
+        qobject_type(qobj) != QTYPE_QINT)) {
         error_set(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
-                  "double");
+                  "number");
         return;
     }
 
-    *obj = qfloat_get_double(qobject_to_qfloat(qobj));
+    if (qobject_type(qobj) == QTYPE_QINT) {
+        *obj = qint_get_int(qobject_to_qint(qobj));
+    } else {
+        *obj = qfloat_get_double(qobject_to_qfloat(qobj));
+    }
 }
 
 static void qmp_input_start_optional(Visitor *v, bool *present,