[Qemu-devel] [patch 15/18] 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 <address@hidden>

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;
     }
 }
 

--