Plan 9 from Bell Labs 2006-10-03

dist/replica/_plan9.db

@@ -8109,7 +8109,7 @@ sys/src/9/port/devsrv.c - 664 sys sys 1107232208 5418
 sys/src/9/port/devssl.c - 664 sys sys 1146151714 26121
 sys/src/9/port/devtinyfs.c - 664 sys sys 1015278339 15347
 sys/src/9/port/devtls.c - 664 sys sys 1146151715 45214
-sys/src/9/port/devuart.c - 664 sys sys 1138118881 12141
+sys/src/9/port/devuart.c - 664 sys sys 1159822860 12193
 sys/src/9/port/devwd.c - 664 sys sys 1126582325 2342
 sys/src/9/port/edf.c - 664 sys sys 1138472540 13489
 sys/src/9/port/edf.h - 664 sys sys 1138469072 1195

dist/replica/plan9.db

@@ -8109,7 +8109,7 @@ sys/src/9/port/devsrv.c - 664 sys sys 1107232208 5418
 sys/src/9/port/devssl.c - 664 sys sys 1146151714 26121
 sys/src/9/port/devtinyfs.c - 664 sys sys 1015278339 15347
 sys/src/9/port/devtls.c - 664 sys sys 1146151715 45214
-sys/src/9/port/devuart.c - 664 sys sys 1138118881 12141
+sys/src/9/port/devuart.c - 664 sys sys 1159822860 12193
 sys/src/9/port/devwd.c - 664 sys sys 1126582325 2342
 sys/src/9/port/edf.c - 664 sys sys 1138472540 13489
 sys/src/9/port/edf.h - 664 sys sys 1138469072 1195

dist/replica/plan9.log

@@ -30517,3 +30517,4 @@
 1159666206 0 c sys/src/cmd/aux/cddb.c - 664 sys sys 1159664477 4676
 1159731006 0 c 386/bin/aux/cddb - 775 sys sys 1159730491 72635
 1159736406 0 a sys/src/9/pc/a100p.cp - 444 sys sys 1159735144 21984
+1159822807 0 c sys/src/9/port/devuart.c - 664 sys sys 1159822860 12193

sys/src/9/port/devuart.c

@@ -681,7 +681,7 @@ uartrecv(Uart *p,  char ch)
 	/* receive the character */
 	if(p->putc)
 		p->putc(p->iq, ch);
-	else{
+	else if (p->iw) {		/* maybe the line isn't enabled yet */
 		ilock(&p->rlock);
 		next = p->iw + 1;
 		if(next == p->ie)