s4-samdb: make sure the static credentials are never freed

diff --git a/source4/dsdb/samdb/samdb.c b/source4/dsdb/samdb/samdb.c
index c56782bb4970711d10a886c2cdfbacf66f9a6abe..70f0409c3d90ff4a759439fb95d642f9358f1408 100644 (file)
--- a/source4/dsdb/samdb/samdb.c
+++ b/source4/dsdb/samdb/samdb.c
@@ -72,6 +72,14 @@ char *samdb_relative_path(struct ldb_context *ldb,
        return full_name;
 }
 
+/*
+  make sure the static credentials are not freed
+ */
+static int samdb_credentials_destructor(struct cli_credentials *creds)
+{
+       return -1;
+}
+
 /*
   this returns a static set of system credentials. It is static so
   that we always get the same pointer in ldb_wrap_connect()
@@ -104,6 +112,7 @@ struct cli_credentials *samdb_credentials(struct tevent_context *event_ctx,
                return NULL;
        }
        static_credentials = cred;
+       talloc_set_destructor(cred, samdb_credentials_destructor);
        return cred;
 }