[PATCH] fix m68knommu/ColdFire serial port hang

This patches fixes a serial port "hang" on the m68knommu ColdFire
serial driver. It was erroneoulsy looking for a state bit that
is never set.

diff --git a/drivers/serial/mcfserial.c b/drivers/serial/mcfserial.c
index a40649de018751c33e1f386ba81a6b8da27ebe58..3e994bbdfe3eca23fb2bf87a33954eb0e6261e11 100644 (file)
--- a/drivers/serial/mcfserial.c
+++ b/drivers/serial/mcfserial.c
@@ -1,7 +1,7 @@
 /*
  * mcfserial.c -- serial driver for ColdFire internal UARTS.
  *
- * Copyright (C) 1999-2002 Greg Ungerer <gerg@snapgear.com>
+ * Copyright (C) 1999-2003 Greg Ungerer <gerg@snapgear.com>
  * Copyright (c) 2000-2001 Lineo, Inc. <www.lineo.com> 
  * Copyright (C) 2001-2002 SnapGear Inc. <www.snapgear.com> 
  *
@@ -50,12 +50,6 @@
 #include <asm/uaccess.h>
 #include "mcfserial.h"
 
-/*
- *     the only event we use
- */
-#undef RS_EVENT_WRITE_WAKEUP
-#define RS_EVENT_WRITE_WAKEUP 0
-
 struct timer_list mcfrs_timer_struct;
 
 /*
@@ -443,12 +437,10 @@ static void mcfrs_offintr(void *private)
        if (!tty)
                return;
 
-       if (test_and_clear_bit(RS_EVENT_WRITE_WAKEUP, &info->event)) {
-               if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
-                   tty->ldisc.write_wakeup)
-                       (tty->ldisc.write_wakeup)(tty);
-               wake_up_interruptible(&tty->write_wait);
-       }
+       if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
+           tty->ldisc.write_wakeup)
+               (tty->ldisc.write_wakeup)(tty);
+       wake_up_interruptible(&tty->write_wait);
 }