[PATCH v4 03/10] qom: make errp last param in methods taking va_list

["Daniel P. Berrangé" <berrange@redhat.com>]

object_new_with_props can't put 'errp' last due to the use of
variadic arguments. That constraint does not apply to the use
of va_list with object_new_with_propv, so follow normal practice
with 'errp' placement.

The same rationale applies to object_set_propv.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
 include/qom/object.h            | 10 +++++-----
 qom/object.c                    | 20 ++++++++++----------
 tests/unit/check-qom-proplist.c |  4 ++--
 3 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/include/qom/object.h b/include/qom/object.h
index 510885218b..c7d80914fb 100644
--- a/include/qom/object.h
+++ b/include/qom/object.h
@@ -689,16 +689,16 @@ Object *object_new_with_props(const char *typename,
  * @typename:  The name of the type of the object to instantiate.
  * @parent: the parent object
  * @id: The unique ID of the object
- * @errp: pointer to error object
  * @vargs: list of property names and values
+ * @errp: pointer to error object
  *
  * See object_new_with_props() for documentation.
  */
 Object *object_new_with_propv(const char *typename,
                               Object *parent,
                               const char *id,
-                              Error **errp,
-                              va_list vargs);
+                              va_list vargs,
+                              Error **errp);
 
 /**
  * object_set_props:
@@ -739,14 +739,14 @@ bool object_set_props(Object *obj, Error **errp, ...) G_GNUC_NULL_TERMINATED;
 /**
  * object_set_propv:
  * @obj: the object instance to set properties on
- * @errp: pointer to error object
  * @vargs: list of property names and values
+ * @errp: pointer to error object
  *
  * See object_set_props() for documentation.
  *
  * Returns: %true on success, %false on error.
  */
-bool object_set_propv(Object *obj, Error **errp, va_list vargs);
+bool object_set_propv(Object *obj, va_list vargs, Error **errp);
 
 /**
  * object_initialize:
diff --git a/qom/object.c b/qom/object.c
index 62d2f0486a..608c9c0ac7 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -550,7 +550,7 @@ bool object_initialize_child_with_propsv(Object *parentobj,
     object_initialize(childobj, size, type);
     obj = OBJECT(childobj);
 
-    if (!object_set_propv(obj, errp, vargs)) {
+    if (!object_set_propv(obj, vargs, errp)) {
         goto out;
     }
 
@@ -749,7 +749,7 @@ Object *object_new_with_props(const char *typename,
     Object *obj;
 
     va_start(vargs, errp);
-    obj = object_new_with_propv(typename, parent, id, errp, vargs);
+    obj = object_new_with_propv(typename, parent, id, vargs, errp);
     va_end(vargs);
 
     return obj;
@@ -759,8 +759,8 @@ Object *object_new_with_props(const char *typename,
 Object *object_new_with_propv(const char *typename,
                               Object *parent,
                               const char *id,
-                              Error **errp,
-                              va_list vargs)
+                              va_list vargs,
+                              Error **errp)
 {
     Object *obj;
     ObjectClass *klass;
@@ -785,7 +785,7 @@ Object *object_new_with_propv(const char *typename,
     }
     obj = object_new_with_type(klass->type);
 
-    if (!object_set_propv(obj, errp, vargs)) {
+    if (!object_set_propv(obj, vargs, errp)) {
         goto error;
     }
 
@@ -813,14 +813,14 @@ Object *object_new_with_propv(const char *typename,
 
 
 bool object_set_props(Object *obj,
-                     Error **errp,
-                     ...)
+                      Error **errp,
+                      ...)
 {
     va_list vargs;
     bool ret;
 
     va_start(vargs, errp);
-    ret = object_set_propv(obj, errp, vargs);
+    ret = object_set_propv(obj, vargs, errp);
     va_end(vargs);
 
     return ret;
@@ -828,8 +828,8 @@ bool object_set_props(Object *obj,
 
 
 bool object_set_propv(Object *obj,
-                     Error **errp,
-                     va_list vargs)
+                      va_list vargs,
+                      Error **errp)
 {
     const char *propname;
 
diff --git a/tests/unit/check-qom-proplist.c b/tests/unit/check-qom-proplist.c
index ee3c6fb32b..7f31735459 100644
--- a/tests/unit/check-qom-proplist.c
+++ b/tests/unit/check-qom-proplist.c
@@ -373,8 +373,8 @@ static Object *new_helper(Error **errp,
     obj = object_new_with_propv(TYPE_DUMMY,
                                 parent,
                                 "dummy0",
-                                errp,
-                                vargs);
+                                vargs,
+                                errp);
     va_end(vargs);
     return obj;
 }
-- 
2.54.0