From a7607f7e9bdf69c80be33b6386f48cba19fc0fb7 Mon Sep 17 00:00:00 2001
From: aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Wed, 11 Feb 2009 15:21:29 +0000
Subject: [PATCH] qemu: zero ioport_opaque on isa_unassign_ioport (Marcelo
 Tosatti)

If the io port is unassigned, the previous private pointer is
meaningless.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6606 c046a42c-6fe2-441c-8c8c-71466251a162
---
 vl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/vl.c b/vl.c
index ba1e643573..cdb91591c5 100644
--- a/vl.c
+++ b/vl.c
@@ -404,6 +404,8 @@ void isa_unassign_ioport(int start, int length)
         ioport_write_table[0][i] = default_ioport_writeb;
         ioport_write_table[1][i] = default_ioport_writew;
         ioport_write_table[2][i] = default_ioport_writel;
+
+        ioport_opaque[i] = NULL;
     }
 }