USB: at91_udc.c: use resource_size()

Use resource_size().

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
index 043e04db2a0555e7548782d8ddeb967a31772bd7..12ac9cd32a07562ec665f04636b75a263f68d9a8 100644 (file)
--- a/drivers/usb/gadget/at91_udc.c
+++ b/drivers/usb/gadget/at91_udc.c
@@ -1656,9 +1656,7 @@ static int __init at91udc_probe(struct platform_device *pdev)
        if (!res)
                return -ENXIO;
 
-       if (!request_mem_region(res->start,
-                       res->end - res->start + 1,
-                       driver_name)) {
+       if (!request_mem_region(res->start, resource_size(res), driver_name)) {
                DBG("someone's using UDC memory\n");
                return -EBUSY;
        }
@@ -1699,7 +1697,7 @@ static int __init at91udc_probe(struct platform_device *pdev)
                udc->ep[3].maxpacket = 64;
        }
 
-       udc->udp_baseaddr = ioremap(res->start, res->end - res->start + 1);
+       udc->udp_baseaddr = ioremap(res->start, resource_size(res));
        if (!udc->udp_baseaddr) {
                retval = -ENOMEM;
                goto fail0a;
@@ -1781,7 +1779,7 @@ fail0a:
        if (cpu_is_at91rm9200())
                gpio_free(udc->board.pullup_pin);
 fail0:
-       release_mem_region(res->start, res->end - res->start + 1);
+       release_mem_region(res->start, resource_size(res));
        DBG("%s probe failed, %d\n", driver_name, retval);
        return retval;
 }
@@ -1813,7 +1811,7 @@ static int __exit at91udc_remove(struct platform_device *pdev)
                gpio_free(udc->board.pullup_pin);
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       release_mem_region(res->start, res->end - res->start + 1);
+       release_mem_region(res->start, resource_size(res));
 
        clk_put(udc->iclk);
        clk_put(udc->fclk);