4 files changed, 7 insertions, 22 deletions

diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index d8f9e94ae475..cd4fe8b1709f 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -1209,6 +1209,7 @@ static int rtc_proc_open(struct inode *inode, struct file *file)
 
 void rtc_get_rtc_time(struct rtc_time *rtc_tm)
 {
+        unsigned long uip_watchdog = jiffies;
         unsigned char ctrl;
 #ifdef CONFIG_MACH_DECSTATION
         unsigned int real_year;
@@ -1224,8 +1225,10 @@ void rtc_get_rtc_time(struct rtc_time *rtc_tm)
          * Once the read clears, read the RTC time (again via ioctl). Easy.
          */
 
-        if (rtc_is_updating() != 0)
-                msleep(20);
+        while (rtc_is_updating() != 0 && jiffies - uip_watchdog < 2*HZ/100) {
+                barrier();
+                cpu_relax();
+        }
 
         /*
          * Only the values that we read from the RTC are set. We leave
diff --git a/drivers/sbus/char/vfc.h b/drivers/sbus/char/vfc.h
index e56a43af0f62..a7782e7da42e 100644
--- a/drivers/sbus/char/vfc.h
+++ b/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;
diff --git a/drivers/sbus/char/vfc_dev.c b/drivers/sbus/char/vfc_dev.c
index 86ce54130954..7a103698fa3c 100644
--- a/drivers/sbus/char/vfc_dev.c
+++ b/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;
 }
diff --git a/drivers/sbus/char/vfc_i2c.c b/drivers/sbus/char/vfc_i2c.c
index 1faf1e75f71f..739cad9b19a1 100644
--- a/drivers/sbus/char/vfc_i2c.c
+++ b/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)