diff --git a/sys/dev/ic/com.c b/sys/dev/ic/com.c
index 48c971030e52..dc80a2fe7ec8 100644
--- a/sys/dev/ic/com.c
+++ b/sys/dev/ic/com.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: com.c,v 1.156 1999/03/29 10:01:39 ross Exp $	*/
+/*	$NetBSD: com.c,v 1.157 1999/03/29 13:21:15 mycroft Exp $	*/
 
 /*-
  * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
@@ -2174,32 +2174,25 @@ com_common_putc(iot, ioh, c)
 	int c;
 {
 	int s = splserial();
-	int clearirq;
 	u_char stat;
 	int timo;
 
 	/* wait for any pending transmission to finish */
-	timo = 500;
+	timo = 1500;
 	while (!ISSET(stat = bus_space_read_1(iot, ioh, com_lsr), LSR_TXRDY)
 	    && --timo)
 		delay(100);
 
-	clearirq = ISSET(bus_space_read_1(iot, ioh, com_iir), IIR_NOPEND);
-	COM_BARRIER(iot, ioh, BR | BW);
 	bus_space_write_1(iot, ioh, com_data, c);
 	COM_BARRIER(iot, ioh, BR | BW);
+
 	/* wait for this transmission to complete */
 	timo = 15000;
 	while (!ISSET(stat = bus_space_read_1(iot, ioh, com_lsr), LSR_TXRDY)
 	    && --timo)
 		delay(100);
 
-	if(clearirq != 0) {
-		/* clear any interrupts generated by this transmission */
-		(void)bus_space_read_1(iot, ioh, com_iir);
-		COM_BARRIER(iot, ioh, BR | BW);
-		splx(s);
-	}
+	splx(s);
 }
 
 /*