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authorNathan Lynch <ntl@pobox.com>2006-06-20 18:01:58 +1000
committerPaul Mackerras <paulus@samba.org>2006-06-21 15:01:33 +1000
commitccba051c373e342de240ba00d542dac67ae0eb7e (patch)
tree7ee4bcffa4b500e916a3abc3a036954e73233bf1 /arch
parentd3c58fb177dc957af5cdac5ad1638d713fdb8765 (diff)
[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 <ntl@pobox.com> Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/platforms/pseries/eeh_cache.c2
1 files changed, 2 insertions, 0 deletions
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;
}