[SCSI] mpt2sas: fix hotplug event processing

Here's a fix for hotplug events.  The useage of queue_delayed_work seems
to broke the fifo for processing of firmware events.  After several iterations
of adding and removing cabling connected to jbods, the devices are not
getting added becuase kernel thread is activited out of order.
Signed-off-by: NEric Moore <eric.moore@lsi.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

drivers/scsi/mpt2sas/mpt2sas_scsih.c

@@ -119,7 +119,7 @@ struct sense_info {
  */
 struct fw_event_work {
 	struct list_head 	list;
-	struct delayed_work	work;
+	struct work_struct	work;
 	struct MPT2SAS_ADAPTER *ioc;
 	u8			VF_ID;
 	u8			host_reset_handling;
@@ -2007,8 +2007,8 @@ _scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
 
 	spin_lock_irqsave(&ioc->fw_event_lock, flags);
 	list_add_tail(&fw_event->list, &ioc->fw_event_list);
-	INIT_DELAYED_WORK(&fw_event->work, _firmware_event_work);
-	queue_delayed_work(ioc->firmware_event_thread, &fw_event->work, 1);
+	INIT_WORK(&fw_event->work, _firmware_event_work);
+	queue_work(ioc->firmware_event_thread, &fw_event->work);
 	spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
 }
 
@@ -2052,7 +2052,7 @@ _scsih_fw_event_requeue(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
 		return;
 
 	spin_lock_irqsave(&ioc->fw_event_lock, flags);
-	queue_delayed_work(ioc->firmware_event_thread, &fw_event->work, delay);
+	queue_work(ioc->firmware_event_thread, &fw_event->work);
 	spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
 }
 
@@ -4961,7 +4961,7 @@ static void
 _firmware_event_work(struct work_struct *work)
 {
 	struct fw_event_work *fw_event = container_of(work,
-	    struct fw_event_work, work.work);
+	    struct fw_event_work, work);
 	unsigned long flags;
 	struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;