BRKINT is within c_iflag rather than c_cflag. Fixes: ea017f5853e9 (tty: serial: uartlite: Prevent changing fixed parameters) Reviewed-by: Sean Anderson <sean.anderson@seco.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20220519081808.3776-2-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>