[PATCH] USB: usbnet: replace schedule_timeout() with msleep()

Use msleep() instead of schedule_timeout() to guarantee the task delays
for the desired time. Delete unused UNLINK_TIMEOUT_JIFFIES #define.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

drivers/usb/net/usbnet.c

@@ -166,7 +166,7 @@
 #define CONTROL_TIMEOUT_JIFFIES ((CONTROL_TIMEOUT_MS * HZ)/1000)
 
 // between wakeups
-#define UNLINK_TIMEOUT_JIFFIES ((3  /*ms*/ * HZ)/1000)
+#define UNLINK_TIMEOUT_MS	3
 
 /*-------------------------------------------------------------------------*/
 
@@ -2591,8 +2591,7 @@ static int usbnet_stop (struct net_device *net)
 	while (skb_queue_len (&dev->rxq)
 			&& skb_queue_len (&dev->txq)
 			&& skb_queue_len (&dev->done)) {
-		set_current_state (TASK_UNINTERRUPTIBLE);
-		schedule_timeout (UNLINK_TIMEOUT_JIFFIES);
+		msleep(UNLINK_TIMEOUT_MS);
 		devdbg (dev, "waited for %d urb completions", temp);
 	}
 	dev->wait = NULL;