The 32-bit PCI code tests if "bus" is non-NULL after calling
pci_scan_bus_parented() in one place but not another before
derefencing it.
Signed-off-by: Benjamin Herrenschmidt <[EMAIL PROTECTED]>
---
arch/powerpc/kernel/pci_32.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- linux-merge.orig/arch/powerpc/kernel/pci_32.c 2007-12-21
14:50:24.000000000 +1100
+++ linux-merge/arch/powerpc/kernel/pci_32.c 2007-12-21 14:51:20.000000000
+1100
@@ -442,9 +442,10 @@ static int __init pcibios_init(void)
hose->last_busno = 0xff;
bus = pci_scan_bus_parented(hose->parent, hose->first_busno,
hose->ops, hose);
- if (bus)
+ if (bus) {
pci_bus_add_devices(bus);
- hose->last_busno = bus->subordinate;
+ hose->last_busno = bus->subordinate;
+ }
if (pci_assign_all_buses || next_busno <= hose->last_busno)
next_busno = hose->last_busno +
pcibios_assign_bus_offset;
}
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