pci: Properly configure prefetchable memory region

Forcibly set hose->pci_prefetch to NULL to make sure it will be setup.
This will help if for any reason callers didn't make sure themselves to
NULL the field.

Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/drivers/pci/pci_auto.c b/drivers/pci/pci_auto.c
index c4ed8ba6c3157fe9646c98a1a5896a39f2137e6e..86ba6b523c11da2f7eb5ed47fe31b7798d1f59d1 100644 (file)
--- a/drivers/pci/pci_auto.c
+++ b/drivers/pci/pci_auto.c
@@ -297,7 +297,7 @@ void pciauto_config_init(struct pci_controller *hose)
 {
        int i;
 
-       hose->pci_io = hose->pci_mem = NULL;
+       hose->pci_io = hose->pci_mem = hose->pci_prefetch = NULL;
 
        for (i = 0; i < hose->region_count; i++) {
                switch(hose->regions[i].flags) {