1 files changed, 9 insertions, 3 deletions

diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
index 397ba94cd7ec..16decf4ac2f4 100644
--- a/arch/mips/vr41xx/common/irq.c
+++ b/arch/mips/vr41xx/common/irq.c
@@ -1,7 +1,7 @@
 /*
  *  Interrupt handing routines for NEC VR4100 series.
  *
- *  Copyright (C) 2005  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *  Copyright (C) 2005-2007  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -73,13 +73,19 @@ static void irq_dispatch(unsigned int irq)
         if (cascade->get_irq != NULL) {
                 unsigned int source_irq = irq;
                 desc = irq_desc + source_irq;
-                desc->chip->ack(source_irq);
+                if (desc->chip->mask_ack)
+                        desc->chip->mask_ack(source_irq);
+                else {
+                        desc->chip->mask(source_irq);
+                        desc->chip->ack(source_irq);
+                }
                 irq = cascade->get_irq(irq);
                 if (irq < 0)
                         atomic_inc(&irq_err_count);
                 else
                         irq_dispatch(irq);
-                desc->chip->end(source_irq);
+                if (!(desc->status & IRQ_DISABLED) && desc->chip->unmask)
+                        desc->chip->unmask(source_irq);
         } else
                 do_IRQ(irq);
 }