From ccba051c373e342de240ba00d542dac67ae0eb7e Mon Sep 17 00:00:00 2001 From: Nathan Lynch Date: Tue, 20 Jun 2006 18:01:58 +1000 Subject: [POWERPC] Extra sanity check in EEH code Don't dereference a device node that isn't there. A "shouldn't happen" case, but someone ran into it with a possibly misconfigured device tree. Signed-off-by: Nathan Lynch Signed-off-by: Anton Blanchard Signed-off-by: Paul Mackerras --- arch/powerpc/platforms/pseries/eeh_cache.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch') diff --git a/arch/powerpc/platforms/pseries/eeh_cache.c b/arch/powerpc/platforms/pseries/eeh_cache.c index d4a402c5866..98c23aec85b 100644 --- a/arch/powerpc/platforms/pseries/eeh_cache.c +++ b/arch/powerpc/platforms/pseries/eeh_cache.c @@ -304,6 +304,8 @@ void __init pci_addr_cache_build(void) pci_addr_cache_insert_device(dev); dn = pci_device_to_OF_node(dev); + if (!dn) + continue; pci_dev_get (dev); /* matching put is in eeh_remove_device() */ PCI_DN(dn)->pcidev = dev; } -- cgit v1.2.3