File pacemaker-pengine-memory-leak-invalid-constraint-set.patch of Package pacemaker.3577

commit 7e4a8a575efc59eacccfdd3dc8c1b76a2a0e37c3
Author: Ken Gaillot <kgaillot@redhat.com>
Date:   Thu Jun 9 11:52:43 2016 -0500

    Fix: pengine: avoid memory leak when invalid constraint involves set

diff --git a/pengine/constraints.c b/pengine/constraints.c
index a39b8b2..dd7d843 100644
--- a/pengine/constraints.c
+++ b/pengine/constraints.c
@@ -908,6 +908,9 @@ unpack_location(xmlNode * xml_obj, pe_working_set_t * data_set)
             any_sets = TRUE;
             set = expand_idref(set, data_set->input);
             if (unpack_location_set(xml_obj, set, data_set) == FALSE) {
+                if (expanded_xml) {
+                    free_xml(expanded_xml);
+                }
                 return FALSE;
             }
         }