[SPARC]: Fix up sleep_on() removal in vfc driver.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/sbus/char/vfc.h

@@ -129,8 +129,6 @@ struct vfc_dev {
 	struct vfc_regs *phys_regs;
 	unsigned int control_reg;
 	struct semaphore device_lock_sem;
-	struct timer_list poll_timer;
-	wait_queue_head_t poll_wait;
 	int instance;
 	int busy;
 	unsigned long which_io;

drivers/sbus/char/vfc_dev.c

@@ -137,7 +137,6 @@ int init_vfc_devstruct(struct vfc_dev *dev, int instance)
 	dev->instance=instance;
 	init_MUTEX(&dev->device_lock_sem);
 	dev->control_reg=0;
-	init_waitqueue_head(&dev->poll_wait);
 	dev->busy=0;
 	return 0;
 }

drivers/sbus/char/vfc_i2c.c

@@ -79,25 +79,10 @@ int vfc_pcf8584_init(struct vfc_dev *dev)
 	return 0;
 }
 
-void vfc_i2c_delay_wakeup(struct vfc_dev *dev) 
-{
-	/* Used to profile code and eliminate too many delays */
-	VFC_I2C_DEBUG_PRINTK(("vfc%d: Delaying\n", dev->instance));
-	wake_up(&dev->poll_wait);
-}
-
 void vfc_i2c_delay_no_busy(struct vfc_dev *dev, unsigned long usecs) 
 {
-	DEFINE_WAIT(wait);
-	init_timer(&dev->poll_timer);
-	dev->poll_timer.expires = jiffies + usecs_to_jiffies(usecs);
-	dev->poll_timer.data=(unsigned long)dev;
-	dev->poll_timer.function=(void *)(unsigned long)vfc_i2c_delay_wakeup;
-	add_timer(&dev->poll_timer);
-	prepare_to_wait(&dev->poll_wait, &wait, TASK_UNINTERRUPTIBLE);
-	schedule();
-	del_timer(&dev->poll_timer);
-	finish_wait(&dev->poll_wait, &wait);
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	schedule_timeout(usecs_to_jiffies(usecs));
 }
 
 void inline vfc_i2c_delay(struct vfc_dev *dev)