powerpc/pci: Clean up direct access to sysdata by RTAS

We shouldn't directly access sysdata to get the device node but call
pci_bus_to_OF_node() for this purpose.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 2 insertions, 8 deletions

diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index 8869001ab5d7..54e66da8f743 100644
--- a/arch/powerpc/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -93,10 +93,7 @@ static int rtas_pci_read_config(struct pci_bus *bus,
 {
         struct device_node *busdn, *dn;
 
-        if (bus->self)
-                busdn = pci_device_to_OF_node(bus->self);
-        else
-                busdn = bus->sysdata;   /* must be a phb */
+        busdn = pci_bus_to_OF_node(bus);
 
         /* Search only direct children of the bus */
         for (dn = busdn->child; dn; dn = dn->sibling) {
@@ -140,10 +137,7 @@ static int rtas_pci_write_config(struct pci_bus *bus,
 {
         struct device_node *busdn, *dn;
 
-        if (bus->self)
-                busdn = pci_device_to_OF_node(bus->self);
-        else
-                busdn = bus->sysdata;   /* must be a phb */
+        busdn = pci_bus_to_OF_node(bus);
 
         /* Search only direct children of the bus */
         for (dn = busdn->child; dn; dn = dn->sibling) {