[POWERPC] pci_32.c: Switch to ref counting PCI API

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

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 5 insertions, 2 deletions

diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index 5b05a09a6bdf..f022862de344 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -656,10 +656,13 @@ make_one_node_map(struct device_node* node, u8 pci_bus)
                 reg = of_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);
         }
 }