pci_find_slot isn't hot-plug safe. Move this code to the pci hotplug safe 
equivalent and hold a refcount
properly while doinmg make_one_node_map.

Signed-off-by: Alan Cox <[EMAIL PROTECTED]>

diff -u --new-file --recursive --exclude-from /usr/src/exclude 
linux.vanilla-2.6.21-rc6-mm1/arch/powerpc/kernel/pci_32.c 
linux-2.6.21-rc6-mm1/arch/powerpc/kernel/pci_32.c
--- linux.vanilla-2.6.21-rc6-mm1/arch/powerpc/kernel/pci_32.c   2007-04-12 
14:14:43.000000000 +0100
+++ linux-2.6.21-rc6-mm1/arch/powerpc/kernel/pci_32.c   2007-04-23 
12:20:22.007864440 +0100
@@ -656,10 +656,13 @@
                reg = get_property(node, "reg", NULL);
                if (!reg)
                        continue;
-               dev = pci_find_slot(pci_bus, ((reg[0] >> 8) & 0xff));
-               if (!dev || !dev->subordinate)
+               dev = pci_get_bus_and_slot(pci_bus, ((reg[0] >> 8) & 0xff));
+               if (!dev || !dev->subordinate) {
+                       pci_dev_put(dev);
                        continue;
+               }
                make_one_node_map(node, dev->subordinate->number);
+               pci_dev_put(dev);
        }
 }
        
-
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