sparc64: Get rid of pci_controller_info.

It is just used as a parent to encapsulate two PBM objects.

But that layout is only really relevant and necessary for
psycho PCI controllers, which unlike all the others share
a single IOMMU instance between sibling PCI busses.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index 8e18fdf32a60..3070f6faecca 100644
--- a/arch/sparc64/kernel/pci.c
+++ b/arch/sparc64/kernel/pci.c
@@ -977,14 +977,14 @@ int pcibus_to_node(struct pci_bus *pbus)
 EXPORT_SYMBOL(pcibus_to_node);
 #endif
 
-/* Return the domain nuber for this pci bus */
+/* Return the domain number for this pci bus */
 
 int pci_domain_nr(struct pci_bus *pbus)
 {
         struct pci_pbm_info *pbm = pbus->sysdata;
         int ret;
 
-        if (pbm == NULL || pbm->parent == NULL) {
+        if (!pbm) {
                 ret = -ENXIO;
         } else {
                 ret = pbm->index;