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Diffstat (limited to 'src/mame/drivers/portfoli.cpp')
-rw-r--r--src/mame/drivers/portfoli.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/portfoli.cpp b/src/mame/drivers/portfoli.cpp
index 5102997046c..66960292fda 100644
--- a/src/mame/drivers/portfoli.cpp
+++ b/src/mame/drivers/portfoli.cpp
@@ -862,7 +862,7 @@ static MACHINE_CONFIG_START( portfolio, portfolio_state )
MCFG_TIMER_DRIVER_ADD_PERIODIC("counter", portfolio_state, counter_tick, attotime::from_hz(XTAL_32_768kHz/16384))
MCFG_TIMER_DRIVER_ADD_PERIODIC(TIMER_TICK_TAG, portfolio_state, system_tick, attotime::from_hz(XTAL_32_768kHz/32768))
- MCFG_RS232_PORT_ADD(RS232_TAG, default_rs232_devices, NULL)
+ MCFG_RS232_PORT_ADD(RS232_TAG, default_rs232_devices, nullptr)
MCFG_RS232_RXD_HANDLER(DEVWRITELINE(M82C50A_TAG, ins8250_uart_device, rx_w))
MCFG_RS232_DCD_HANDLER(DEVWRITELINE(M82C50A_TAG, ins8250_uart_device, dcd_w))
MCFG_RS232_DSR_HANDLER(DEVWRITELINE(M82C50A_TAG, ins8250_uart_device, dsr_w))