[california/wip/731543-attendees] Fixes memory double-free bug

[Jim Nelson <jnelson src gnome org>]

commit b3a24a07d31b3f0f5bd9c808642ac21ab3b7800c
Author: Jim Nelson <jim yorba org>
Date:   Wed Nov 12 20:02:39 2014 -0800

    Fixes memory double-free bug

 src/component/component-person.vala |    6 ++++--
 vapi/libical.vapi                   |    4 ++--
 2 files changed, 6 insertions(+), 4 deletions(-)
---
diff --git a/src/component/component-person.vala b/src/component/component-person.vala
index 12b6d0c..d38554d 100644
--- a/src/component/component-person.vala
+++ b/src/component/component-person.vala
@@ -198,8 +198,10 @@ public class Person : BaseObject, Gee.Hashable<Person>, Gee.Comparable<Person> {
                 assert_not_reached();
         }
         
-        foreach (string parameter in parameters)
-            prop.add_parameter(new iCal.icalparameter.from_string(parameter));
+        foreach (string parameter in parameters) {
+            iCal.icalparameter param = new iCal.icalparameter.from_string(parameter);
+            prop.add_parameter((owned) param);
+        }
         
         return prop;
     }
diff --git a/vapi/libical.vapi b/vapi/libical.vapi
index 5ad3c1a..9868c8c 100644
--- a/vapi/libical.vapi
+++ b/vapi/libical.vapi
@@ -499,7 +499,7 @@ namespace iCal {
                [CCode (cname = "icalproperty_new_action", has_construct_function = false)]
                public icalproperty.action (iCal.icalproperty_action v);
                [CCode (cname = "icalproperty_add_parameter")]
-               public void add_parameter (iCal.icalparameter parameter);
+               public void add_parameter (owned iCal.icalparameter parameter);
                [CCode (cname = "icalproperty_add_parameters")]
                public static void add_parameters (iCal.icalproperty prop, void* args);
                [CCode (cname = "icalproperty_new_allowconflict", has_construct_function = false)]
@@ -1009,7 +1009,7 @@ namespace iCal {
                [CCode (cname = "icalproperty_set_owner")]
                public void set_owner (string v);
                [CCode (cname = "icalproperty_set_parameter")]
-               public void set_parameter (iCal.icalparameter parameter);
+               public void set_parameter (owned iCal.icalparameter parameter);
                [CCode (cname = "icalproperty_set_parameter_from_string")]
                public void set_parameter_from_string (string name, string value);
                [CCode (cname = "icalproperty_set_percentcomplete")]