diff --git a/arch/sparc64/kernel/pci_common.c b/arch/sparc64/kernel/pci_common.c
index 2f61c4b1259606ee45ab004cd8e10d91bcb3b5ae..c76bfbb7da085cd5538391713c13e9b86f9ed148 100644
--- a/arch/sparc64/kernel/pci_common.c
+++ b/arch/sparc64/kernel/pci_common.c
@@ -264,7 +264,7 @@ static int sun4v_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
 	unsigned int func = PCI_FUNC(devfn);
 	unsigned long ret;
 
-	if (bus_dev == pbm->pci_bus && devfn == 0x00)
+	if (!bus && devfn == 0x00)
 		return pci_host_bridge_read_pci_cfg(bus_dev, devfn, where,
 						    size, value);
 	if (config_out_of_range(pbm, bus, devfn, where)) {
@@ -300,7 +300,7 @@ static int sun4v_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
 	unsigned int func = PCI_FUNC(devfn);
 	unsigned long ret;
 
-	if (bus_dev == pbm->pci_bus && devfn == 0x00)
+	if (!bus && devfn == 0x00)
 		return pci_host_bridge_write_pci_cfg(bus_dev, devfn, where,
 						     size, value);
 	if (config_out_of_range(pbm, bus, devfn, where)) {