ide: ide_requeue_and_plug() reinstate "always plug" behaviour

We see stalls if we don't always ensure that the queue gets run
again. Even if rq == NULL, we could have other pending requests
in the queue.
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

drivers/ide/ide-io.c

@@ -570,7 +570,6 @@ void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq)
 	spin_unlock_irqrestore(q->queue_lock, flags);
 
 	/* Use 3ms as that was the old plug delay */
-	if (rq)
 	blk_delay_queue(q, 3);
 }