From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marcelo Tosatti <mtosatti@redhat.com>
Subject: [patch 23/24] QEMU/KVM: zero ioport_opaque on
	isa_unassign_ioport
Date: Tue, 11 Mar 2008 17:12:14 -0300
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Cc: Marcelo Tosatti <mtosatti@redhat.com>
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If the io port is unassigned, the previous private pointer is 
meaningless.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

Index: kvm-userspace.hotplug2/qemu/vl.c
===================================================================
--- kvm-userspace.hotplug2.orig/qemu/vl.c
+++ kvm-userspace.hotplug2/qemu/vl.c
@@ -399,6 +399,8 @@ void isa_unassign_ioport(int start, int 
         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;
     }
 }
 

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