qapi: make visit_type_size fallback to type_int

Currently visit_type_size checks if the visitor's type_size function pointer is
NULL. If not, it calls it, otherwise it calls v->type_uint64(). But neither of
these pointers are ever set. Fallback to calling v->type_int() in this third
(default) case.

Signed-off-by: Vasilis Liaskovitis <vasilis.liaskovitis@profitbricks.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Message-id: 1375109277-25561-6-git-send-email-imammedo@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/qapi/qapi-visit-core.c b/qapi/qapi-visit-core.c
index d6a4012..6451a21a 100644
--- a/qapi/qapi-visit-core.c
+++ b/qapi/qapi-visit-core.c
@@ -263,8 +263,17 @@ void visit_type_int64(Visitor *v, int64_t *obj, const char *name, Error **errp)
 
 void visit_type_size(Visitor *v, uint64_t *obj, const char *name, Error **errp)
 {
+    int64_t value;
     if (!error_is_set(errp)) {
-        (v->type_size ? v->type_size : v->type_uint64)(v, obj, name, errp);
+        if (v->type_size) {
+            v->type_size(v, obj, name, errp);
+        } else if (v->type_uint64) {
+            v->type_uint64(v, obj, name, errp);
+        } else {
+            value = *obj;
+            v->type_int(v, &value, name, errp);
+            *obj = value;
+        }
     }
 }