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Date: Tue, 10 Feb 2009 18:31:06 -0200
From: Marcelo Tosatti <mtosatti@redhat.com>
Content-Disposition: inline; filename=zero-ioport-opaque
Subject: [Qemu-devel] [patch 15/19] qemu: zero ioport_opaque on
	isa_unassign_ioport
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To: Anthony Liguori <anthony@codemonkey.ws>
Cc: Marcelo Tosatti <mtosatti@redhat.com>, qemu-devel <qemu-devel@nongnu.org>

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

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

Index: trunk/vl.c
===================================================================
--- trunk.orig/vl.c
+++ trunk/vl.c
@@ -404,6 +404,8 @@ 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;
     }
 }
 

--