[PATCH] drivers/atm/firestream.c: convert interruptible_sleep_on()

From: irwan.djajadi@iname.com

Replace interruptible_sleep_on() with wait_event_interruptible(). Also, reorder
wake_up_interruptible() to prevent race condition.

Signed-off-by: Irwan Djajadi <irwan.djajadi@iname.com>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>

Index: linux-kj/drivers/atm/firestream.c
===================================================================
--- linux-kj.orig/drivers/atm/firestream.c	2005-12-05 13:19:48.000000000 +0300
+++ linux-kj/drivers/atm/firestream.c	2005-12-05 13:20:11.000000000 +0300
@@ -734,8 +734,8 @@ static void process_txdone_queue (struct
       
 			skb = td->skb;
 			if (skb == FS_VCC (ATM_SKB(skb)->vcc)->last_skb) {
-				wake_up_interruptible (& FS_VCC (ATM_SKB(skb)->vcc)->close_wait);
 				FS_VCC (ATM_SKB(skb)->vcc)->last_skb = NULL;
+				wake_up_interruptible (& FS_VCC (ATM_SKB(skb)->vcc)->close_wait);
 			}
 			td->dev->ntxpckts--;
 
@@ -1113,10 +1113,10 @@ static void fs_close(struct atm_vcc *atm
 		   be impolite not to send them don't you think? 
 		   XXX
 		   We don't know which packets didn't get sent. So if we get interrupted in 
-		   this sleep_on, we'll lose any reference to these packets. Memory leak!
+		   this wait_event, we'll lose any reference to these packets. Memory leak!
 		   On the other hand, it's awfully convenient that we can abort a "close" that
 		   is taking too long. Maybe just use non-interruptible sleep on? -- REW */
-		interruptible_sleep_on (& vcc->close_wait);
+		wait_event_interruptible (vcc->close_wait, !vcc->last_skb);
 	}
 
 	txtp = &atm_vcc->qos.txtp;