qom: Correct error values in two contracts

object_property_get_bool()'s contract claims it returns NULL on error.
Pasto; it returns false.

object_property_get_int()'s contract claims it returns "negative".  It
actually returns -1.  All the other object_property_get_FOO()
contracts specify the exact error value, so do the same here.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200917125540.597786-3-armbru@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

diff --git a/include/qom/object.h b/include/qom/object.h
index 494827b4d1fad0130d1638e954039b6b1c19c182..32524d72cc9153663c3a43e29608efca17023223 100644 (file)
--- a/include/qom/object.h
+++ b/include/qom/object.h
@@ -1624,7 +1624,7 @@ bool object_property_set_bool(Object *obj, const char *name,
  * @name: the name of the property
  * @errp: returns an error if this function fails
  *
- * Returns: the value of the property, converted to a boolean, or NULL if
+ * Returns: the value of the property, converted to a boolean, or false if
  * an error occurs (including when the property value is not a bool).
  */
 bool object_property_get_bool(Object *obj, const char *name,
@@ -1649,7 +1649,7 @@ bool object_property_set_int(Object *obj, const char *name,
  * @name: the name of the property
  * @errp: returns an error if this function fails
  *
- * Returns: the value of the property, converted to an integer, or negative if
+ * Returns: the value of the property, converted to an integer, or -1 if
  * an error occurs (including when the property value is not an integer).
  */
 int64_t object_property_get_int(Object *obj, const char *name,