1 files changed, 1 insertions, 1 deletions

diff --git a/lib/iomap.c b/lib/iomap.c
index dd6ca48fe6b0..37a3ea4cac9f 100644
--- a/lib/iomap.c
+++ b/lib/iomap.c
@@ -257,7 +257,7 @@ EXPORT_SYMBOL(ioport_unmap);
 void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
 {
         resource_size_t start = pci_resource_start(dev, bar);
-        unsigned long len = pci_resource_len(dev, bar);
+        resource_size_t len = pci_resource_len(dev, bar);
         unsigned long flags = pci_resource_flags(dev, bar);
 
         if (!len || !start)