powerpc/pci/rpadlpar: Fix device reference leaks
commit 99e5cde5 upstream. Make sure to drop any device reference taken by vio_find_node() when adding and removing virtual I/O slots. Fixes: 5eeb8c63 ("[PATCH] PCI Hotplug: rpaphp: Move VIO registration") Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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