[PATCH] ehci-au1xxx.c: use platform_get_resource() and resource_size()

[H Hartley Sweeten]

Use platform_get_resource() to fetch the memory resource and
resource_size() for calculate the length.

Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: David Brownell <dbrownell@xxxxxxxxxxxxxxxxxxxxx>

---

diff --git a/drivers/usb/host/ehci-au1xxx.c b/drivers/usb/host/ehci-au1xxx.c
index ed77be7..987e1ed 100644
--- a/drivers/usb/host/ehci-au1xxx.c
+++ b/drivers/usb/host/ehci-au1xxx.c
@@ -121,6 +121,7 @@ static int ehci_hcd_au1xxx_drv_probe(struct platform_device *pdev)
 {
 	struct usb_hcd *hcd;
 	struct ehci_hcd *ehci;
+	struct resource *res;
 	int ret;
 
 	if (usb_disabled())
@@ -144,8 +145,9 @@ static int ehci_hcd_au1xxx_drv_probe(struct platform_device *pdev)
 	if (!hcd)
 		return -ENOMEM;
 
-	hcd->rsrc_start = pdev->resource[0].start;
-	hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1;
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	hcd->rsrc_start = res->start;
+	hcd->rsrc_len = resource_size(res);
 
 	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
 		pr_debug("request_mem_region failed"); 
--
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