···1577157715781578out_err:15791579 if (tcp_ses) {15801580- kfree(tcp_ses->hostname);15801580+ if (!IS_ERR(tcp_ses->hostname))15811581+ kfree(tcp_ses->hostname);15811582 if (tcp_ses->ssocket)15821583 sock_release(tcp_ses->ssocket);15831584 kfree(tcp_ses);