[#9,!11] Fixed reference leaks

common/dns.c
    cache_found_zone() - fixed 1 leaked reference

common/execute.c
    execute_statements() - fixed 3 leaked references

common/options.c
    parse_option_buffer() - fixed 3 leaked references

relay/dhcrelay.c
    process_down6() - fixed 1 leaked reference

server/confpars.c
    parse_statement() - fixed 1 leaked reference

    parse_subnet_declaration() - fixed 1 leaked reference

    parse_subnet6_declaration() - fixed 4 leaked references

server/ddns.c
    ddns_update_lease_ptr() - fixed 1 leaked reference

server/dhcp.c
    dhcpinform() - fixed 2 leaked references
    ack_lease() - fixed 1 leaked reference

server/mdb6.c
    create_lease6() - fixed 2 leaked references

1 files changed, 2 insertions, 0 deletions

diff --git a/server/mdb6.c b/server/mdb6.c
index 4afb3928..da7baf6e 100644
--- a/server/mdb6.c
+++ b/server/mdb6.c
@@ -1085,9 +1085,11 @@ create_lease6(struct ipv6_pool *pool, struct iasubopt **addr,
 		case D6O_IA_PD:
 			/* prefix */
 			log_error("create_lease6: prefix pool.");
+			data_string_forget(&ds, MDL);
 			return DHCP_R_INVALIDARG;
 		default:
 			log_error("create_lease6: untyped pool.");
+			data_string_forget(&ds, MDL);
 			return DHCP_R_INVALIDARG;
 		}