s390/pci: fix bar check

Fix the check which bar space we should map to allow available bars only.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 5313915..d28d194 100644 (file)
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -270,7 +270,7 @@ void __iomem *pci_iomap_range(struct pci_dev *pdev,
        struct zpci_dev *zdev = to_zpci(pdev);
        int idx;
 
-       if ((bar & 7) != bar)
+       if (!pci_resource_len(pdev, bar))
                return NULL;
 
        idx = zdev->bars[bar].map_idx;