From aa15f97f60ed33e436714de58a57f27008c4ee0a Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Sat, 25 Jan 2003 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 2003-01-25

---
 ip/tcp.c       |  2 +-
 port/devuart.c | 27 ++++++++++++++++++---------
 2 files changed, 19 insertions(+), 10 deletions(-)

diff --git a/ip/tcp.c b/ip/tcp.c
index 2343d42537926c5fabf9fcba94cb34bdd0ec30a7..f8524b7603b719368b249b2eb5c40450459de448 100644
--- a/ip/tcp.c
+++ b/ip/tcp.c
@@ -1353,7 +1353,7 @@ limbo(Conv *s, uchar *source, uchar *dest, Tcp *seg, int version)
 		if(ipcmp(lp->laddr, dest) != 0)
 			continue;
 
-		/* each new SYN restarts the retramsmits */
+		/* each new SYN restarts the retransmits */
 		lp->irs = seg->seq;
 		break;
 	}
diff --git a/port/devuart.c b/port/devuart.c
index 9cd99bba1a47e8a4b1e8250ac853aa410ffb6d30..09328727e99f551fc7ca0476389b205d283de1dc 100644
--- a/port/devuart.c
+++ b/port/devuart.c
@@ -350,7 +350,8 @@ uartctl(Uart *p, char *cmd)
 		switch(*f[i]){
 		case 'B':
 		case 'b':
-			sleep(&p->r, uartdrained, p);
+			if(p->enabled)
+				sleep(&p->r, uartdrained, p);
 			if((*p->phys->baud)(p, n) < 0)
 				return -1;
 			break;
@@ -360,7 +361,8 @@ uartctl(Uart *p, char *cmd)
 			break;
 		case 'D':
 		case 'd':
-			sleep(&p->r, uartdrained, p);
+			if(p->enabled)
+				sleep(&p->r, uartdrained, p);
 			(*p->phys->dtr)(p, n);
 			break;
 		case 'E':
@@ -381,23 +383,27 @@ uartctl(Uart *p, char *cmd)
 			break;
 		case 'i':
 		case 'I':
-			sleep(&p->r, uartdrained, p);
+			if(p->enabled)
+				sleep(&p->r, uartdrained, p);
 			(*p->phys->fifo)(p, n);
 			break;
 		case 'K':
 		case 'k':
-			sleep(&p->r, uartdrained, p);
+			if(p->enabled)
+				sleep(&p->r, uartdrained, p);
 			(*p->phys->dobreak)(p, n);
 			break;
 		case 'L':
 		case 'l':
-			sleep(&p->r, uartdrained, p);
+			if(p->enabled)
+				sleep(&p->r, uartdrained, p);
 			if((*p->phys->bits)(p, n) < 0)
 				return -1;
 			break;
 		case 'm':
 		case 'M':
-			sleep(&p->r, uartdrained, p);
+			if(p->enabled)
+				sleep(&p->r, uartdrained, p);
 			(*p->phys->modemctl)(p, n);
 			break;
 		case 'n':
@@ -407,7 +413,8 @@ uartctl(Uart *p, char *cmd)
 			break;
 		case 'P':
 		case 'p':
-			sleep(&p->r, uartdrained, p);
+			if(p->enabled)
+				sleep(&p->r, uartdrained, p);
 			if((*p->phys->parity)(p, *(f[i]+1)) < 0)
 				return -1;
 			break;
@@ -420,12 +427,14 @@ uartctl(Uart *p, char *cmd)
 			break;
 		case 'R':
 		case 'r':
-			sleep(&p->r, uartdrained, p);
+			if(p->enabled)
+				sleep(&p->r, uartdrained, p);
 			(*p->phys->rts)(p, n);
 			break;
 		case 'S':
 		case 's':
-			sleep(&p->r, uartdrained, p);
+			if(p->enabled)
+				sleep(&p->r, uartdrained, p);
 			if((*p->phys->stop)(p, n) < 0)
 				return -1;
 			break;