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Diffstat (limited to 'src/mame/drivers/osborne1.cpp')
-rw-r--r--src/mame/drivers/osborne1.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/osborne1.cpp b/src/mame/drivers/osborne1.cpp
index 78f27c93e4c..19074acc235 100644
--- a/src/mame/drivers/osborne1.cpp
+++ b/src/mame/drivers/osborne1.cpp
@@ -278,7 +278,7 @@ static MACHINE_CONFIG_START( osborne1, osborne1_state )
MCFG_ACIA6850_RTS_HANDLER(DEVWRITELINE("rs232", rs232_port_device, write_rts))
MCFG_ACIA6850_IRQ_HANDLER(WRITELINE(osborne1_state, serial_acia_irq_func))
- MCFG_RS232_PORT_ADD("rs232", default_rs232_devices, NULL)
+ MCFG_RS232_PORT_ADD("rs232", default_rs232_devices, nullptr)
MCFG_RS232_RXD_HANDLER(DEVWRITELINE("acia", acia6850_device, write_rxd))
MCFG_RS232_DCD_HANDLER(DEVWRITELINE("acia", acia6850_device, write_dcd))
MCFG_RS232_CTS_HANDLER(DEVWRITELINE("acia", acia6850_device, write_cts))