Use resource_size().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Kevin Hilman <khilman@ti.deeprootsystems.com>
Cc: Ulrik Bech Hald <ubh@ti.com>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Ming Lei <tom.leiming@gmail.com>
Cc: Vincent Sanders <support@simtec.co.uk>
Acked-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
        }
 
        res = devm_request_mem_region(&pdev->dev, res->start,
-                       res->end - res->start + 1, res->name);
+                       resource_size(res), res->name);
        if (!res) {
                dev_err(&pdev->dev, "cannot request I/O memory region\n");
                return -ENXIO;
        }
 
        wdt->base = devm_ioremap_nocache(&pdev->dev, res->start,
-                       res->end - res->start + 1);
+                       resource_size(res));
        if (!wdt->base) {
                dev_err(&pdev->dev, "cannot remap I/O memory region\n");
                return -ENXIO;
 
                return -ENOMEM;
        }
 
-       wdt->regs = ioremap(regs->start, regs->end - regs->start + 1);
+       wdt->regs = ioremap(regs->start, resource_size(regs));
        if (!wdt->regs) {
                ret = -ENOMEM;
                dev_dbg(&pdev->dev, "could not map I/O memory\n");
 
                return -ENOENT;
        }
 
-       size = res->end - res->start + 1;
+       size = resource_size(res);
        wdt_mem = request_mem_region(res->start, size, pdev->name);
 
        if (wdt_mem == NULL) {
 
                ret = -ENXIO;
                goto err_free;
        }
-       wdt->base = ioremap(res->start, res->end - res->start + 1);
+       wdt->base = ioremap(res->start, resource_size(res));
        if (!wdt->base) {
                ret = -ENOMEM;
                goto err_free;
 
        if (!r)
                return -ENODEV;
 
-       mv64x60_wdt_regs = ioremap(r->start, r->end - r->start + 1);
+       mv64x60_wdt_regs = ioremap(r->start, resource_size(r));
        if (mv64x60_wdt_regs == NULL)
                return -ENOMEM;
 
 
                goto err_busy;
        }
 
-       mem = request_mem_region(res->start, res->end - res->start + 1,
-                                pdev->name);
+       mem = request_mem_region(res->start, resource_size(res), pdev->name);
        if (!mem) {
                ret = -EBUSY;
                goto err_busy;
                goto err_clk;
        }
 
-       wdev->base = ioremap(res->start, res->end - res->start + 1);
+       wdev->base = ioremap(res->start, resource_size(res));
        if (!wdev->base) {
                ret = -ENOMEM;
                goto err_ioremap;
        kfree(wdev);
 
 err_kzalloc:
-       release_mem_region(res->start, res->end - res->start + 1);
+       release_mem_region(res->start, resource_size(res));
 
 err_busy:
 err_get_resource:
                return -ENOENT;
 
        misc_deregister(&(wdev->omap_wdt_miscdev));
-       release_mem_region(res->start, res->end - res->start + 1);
+       release_mem_region(res->start, resource_size(res));
        platform_set_drvdata(pdev, NULL);
 
        clk_put(wdev->ick);
 
                return -ENOENT;
        }
 
-       size = res->end - res->start + 1;
+       size = resource_size(res);
        wdt_mem = request_mem_region(res->start, size, pdev->name);
 
        if (wdt_mem == NULL) {
 
                return -ENOENT;
        }
 
-       size = (res->end - res->start) + 1;
+       size = resource_size(res);
        wdt_mem = request_mem_region(res->start, size, pdev->name);
        if (wdt_mem == NULL) {
                dev_err(dev, "failed to get memory region\n");
 
        res = platform_get_resource(dev, IORESOURCE_MEM, 0);
        if (!res)
                goto exit_busy;
-       if (!devm_request_mem_region(&dev->dev,
-                                    res->start, res->end - res->start + 1,
+       if (!devm_request_mem_region(&dev->dev, res->start, resource_size(res),
                                     "txx9wdt"))
                goto exit_busy;
-       txx9wdt_reg = devm_ioremap(&dev->dev,
-                                  res->start, res->end - res->start + 1);
+       txx9wdt_reg = devm_ioremap(&dev->dev, res->start, resource_size(res));
        if (!txx9wdt_reg)
                goto exit_busy;