Merge remote-tracking branch 'origin/slurm-15.08' into slurm-16.05

NEWS

@@ -235,6 +235,7 @@ documents those changes that are of interest to users and administrators.
  -- Perlapi - Remove unneeded/undefined mutex.
  -- Fix issue when TopologyParam=NoInAddrAny is set the responses wouldn't
     make it to the slurmctld when using message aggregation.
+ -- MySQL - Fix potential memory leak when rolling up data.
 
 * Changes in Slurm 15.08.11
 ===========================

src/plugins/accounting_storage/mysql/as_mysql_rollup.c

@@ -310,8 +310,10 @@ static void _add_tres_2_list(List tres_list, char *tres_str, int seconds)
 /* This will destroy the *loc_tres given after it is transfered */
 static void _transfer_loc_tres(List *loc_tres, local_id_usage_t *usage)
 {
-	if (!usage)
+	if (!usage) {
+		FREE_NULL_LIST(*loc_tres);
 		return;
+	}
 
 	if (!usage->loc_tres) {
 		usage->loc_tres = *loc_tres;