1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/usb/host/ehci-ath79.c b/drivers/usb/host/ehci-ath79.c
index 98cc8a13169c..eab3d7059fbe 100644
--- a/drivers/usb/host/ehci-ath79.c
+++ b/drivers/usb/host/ehci-ath79.c
@@ -146,7 +146,7 @@ static int ehci_ath79_probe(struct platform_device *pdev)
                 return -ENOMEM;
 
         hcd->rsrc_start = res->start;
-        hcd->rsrc_len   = res->end - res->start + 1;
+        hcd->rsrc_len   = resource_size(res);
 
         if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
                 dev_dbg(&pdev->dev, "controller already in use\n");