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-rw-r--r--src/emu/ioport.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/emu/ioport.h b/src/emu/ioport.h
index 25ca0aa17cf..1d70ac210f0 100644
--- a/src/emu/ioport.h
+++ b/src/emu/ioport.h
@@ -1333,7 +1333,7 @@ input_port_value input_port_read_direct(const input_port_config *port);
input_port_value input_port_read(running_machine &machine, const char *tag);
/* return the value of a device input port specified by tag */
-input_port_value input_port_read(device_t *device, const char *tag);
+input_port_value input_port_read(device_t &device, const char *tag);
/* return the value of an input port specified by tag, or a default value if the port does not exist */
input_port_value input_port_read_safe(running_machine &machine, const char *tag, input_port_value defvalue);