[PATCH] at91_mci.c: use resource_size()

[H Hartley Sweeten]

Use resource_size().

Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com>

---

diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c
index 63924e0..05a3fb4 100644
--- a/drivers/mmc/host/at91_mci.c
+++ b/drivers/mmc/host/at91_mci.c
@@ -992,7 +992,7 @@ static int __init at91_mci_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))
                return -EBUSY;
 
        mmc = mmc_alloc_host(sizeof(struct at91mci_host), &pdev->dev);
@@ -1063,7 +1063,7 @@ static int __init at91_mci_probe(struct platform_device 
*pdev)
        /*
         * Map I/O region
         */
-       host->baseaddr = ioremap(res->start, res->end - res->start + 1);
+       host->baseaddr = ioremap(res->start, resource_size(res));
        if (!host->baseaddr) {
                ret = -ENOMEM;
                goto fail1;
@@ -1135,7 +1135,7 @@ fail4:
 fail5:
        mmc_free_host(mmc);
 fail6:
-       release_mem_region(res->start, res->end - res->start + 1);
+       release_mem_region(res->start, resource_size(res));
        dev_err(&pdev->dev, "probe failed, err %d\n", ret);
        return ret;
 }
@@ -1176,7 +1176,7 @@ static int __exit at91_mci_remove(struct platform_device 
*pdev)
 
        iounmap(host->baseaddr);
        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));
 
        mmc_free_host(mmc);
        platform_set_drvdata(pdev, NULL); 
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