[PATCH] xd: remove sleep_on() usage

From: Nishanth Aravamudan <nacc@us.ibm.com>

Directly use wait-queues instead of deprecated sleep_on(). This
required adding a local waitqueue. Patch is compile-tested.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>

Index: linux-kj/drivers/block/xd.c
===================================================================
--- linux-kj.orig/drivers/block/xd.c	2005-12-05 13:18:01.000000000 +0300
+++ linux-kj/drivers/block/xd.c	2005-12-05 13:19:33.000000000 +0300
@@ -538,6 +538,7 @@ static inline u_char xd_waitport (u_shor
 
 static inline u_int xd_wait_for_IRQ (void)
 {
+	DEFINE_WAIT(wait);
 	unsigned long flags;
 	xd_watchdog_int.expires = jiffies + 8 * HZ;
 	add_timer(&xd_watchdog_int);
@@ -546,7 +547,9 @@ static inline u_int xd_wait_for_IRQ (voi
 	enable_dma(xd_dma);
 	release_dma_lock(flags);
 	
-	sleep_on(&xd_wait_int);
+	prepare_to_wait(&xd_wait_int, &wait, TASK_UNINTERRUPTIBLE);
+	schedule();
+	finish_wait(&xd_wait_int, &wait);
 	del_timer(&xd_watchdog_int);
 	xdc_busy = 0;