1 files changed, 1 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 2e8629654ca8..cdf5aa1411bf 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -109,7 +109,7 @@ int pcibios_unmap_io_space(struct pci_bus *bus)
         hose = pci_bus_to_host(bus);
 
         /* Check if we have IOs allocated */
-        if (hose->io_base_alloc == 0)
+        if (hose->io_base_alloc == NULL)
                 return 0;
 
         pr_debug("IO unmapping for PHB %s\n", hose->dn->full_name);