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-rw-r--r--arch/s390/pci/pci.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index a966d7bfac57..353161c2e309 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -285,7 +285,7 @@ void __iomem *pci_iomap_range(struct pci_dev *pdev,
struct zpci_dev *zdev = to_zpci(pdev);
int idx;
- if (!pci_resource_len(pdev, bar))
+ if (!pci_resource_len(pdev, bar) || bar >= PCI_BAR_COUNT)
return NULL;
idx = zdev->bars[bar].map_idx;