The recent change to the EEH probing causes a crash on Cell because
eeh_ops is NULL.

Check if EEH is enabled and if not bail out.

Fixes: ff57b454ddb9 ("powerpc/eeh: Do probe on pci_dn")
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
---
 arch/powerpc/kernel/eeh.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
index 76253eb146be..a4c62eb0ee48 100644
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -1053,7 +1053,7 @@ void eeh_add_device_early(struct pci_dn *pdn)
        struct pci_controller *phb;
        struct eeh_dev *edev = pdn_to_eeh_dev(pdn);
 
-       if (!edev)
+       if (!edev || !eeh_enabled())
                return;
 
        /* USB Bus children of PCI devices will not have BUID's */
-- 
2.1.0

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