From afdb06f84920c4949da904b045cdd105caf2579c Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Fri, 7 Oct 2011 09:19:42 +0200
Subject: i8259: Do not update IRQ output after spurious pic_poll_read

If pic_poll_read finds no pending IRQ and return a spurious one instead,
no PIC state is changed, thus we do not need to call pic_update_irq.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
---
 hw/i8259.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'hw/i8259.c')

diff --git a/hw/i8259.c b/hw/i8259.c
index 65123bd2dc..cddd3c769e 100644
--- a/hw/i8259.c
+++ b/hw/i8259.c
@@ -393,7 +393,6 @@ static uint32_t pic_poll_read(PicState *s)
             pic_update_irq(s->pics_state);
     } else {
         ret = 0x07;
-        pic_update_irq(s->pics_state);
     }
 
     return ret;
-- 
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