[PATCH] 8xx_io/uart.c

[Joakim Tjernlund]

> The pasting into the console bug is actually caused in
> 'drivers/char/n_tty.c' (standard tty line discipline) by not handling a
> failed call to 'opost(...)' (if returns -1 if tx buffer is full and char
> must be retried) in 'echo_char()'.  The pasted data is received fine....just
> the echo fails.
>

Hi again

Thanks to Paul Ruhland I was able to fix my problem with chars getting
lost.

This little patch of mine works really fine for me, I just want to known
if it's a good solution or if something else is to prefer.

 Jocke

Index: drivers/char/n_tty.c
===================================================================
RCS file: /home/cvsadmin/cvsroot/kernel/linuxppc/drivers/char/n_tty.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 n_tty.c
--- drivers/char/n_tty.c	1 Nov 2002 13:43:27 -0000	1.1.1.1
+++ drivers/char/n_tty.c	10 Feb 2003 14:38:56 -0000
@@ -186,8 +186,10 @@
 static int opost(unsigned char c, struct tty_struct *tty)
 {
 	int	space, spaces;
+	unsigned long tmo = jiffies + HZ/10;

-	space = tty->driver.write_room(tty);
+	while(!(space = tty->driver.write_room(tty)) && !time_after(jiffies, tmo))
+		cond_resched();
 	if (!space)
 		return -1;


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