[MIPS] zs.c: Resurrect the deceased zs.c for now.

Not that it's meant to be sustained for long, but from time to time it's
useful to have some console...
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

drivers/tc/zs.h

@@ -6,7 +6,7 @@
  *
  * Copyright (C) 1996 Paul Mackerras (Paul.Mackerras@cs.anu.edu.au)
  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
- * Copyright (C) 2004  Maciej W. Rozycki
+ * Copyright (C) 2004, 2005  Maciej W. Rozycki
  */
 #ifndef _DECSERIAL_H
 #define _DECSERIAL_H
@@ -139,8 +139,7 @@ struct dec_serial {
 	int			xmit_head;
 	int			xmit_tail;
 	int			xmit_cnt;
-	struct tq_struct	tqueue;
-	struct tq_struct	tqueue_hangup;
+	struct tasklet_struct	tlet;
 	wait_queue_head_t	open_wait;
 	wait_queue_head_t	close_wait;
 };