mmc: at91_mci.c: use resource_size()

[cjb: rebased patch against Linus]
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: <linux-mmc@vger.kernel.org>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c
index 87226cd202a..339e5913e5c 100644
--- a/drivers/mmc/host/at91_mci.c
+++ b/drivers/mmc/host/at91_mci.c
@@ -928,7 +928,7 @@ 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);
@@ -1017,7 +1017,7 @@ 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;
@@ -1093,7 +1093,7 @@ fail4b:
 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;
 }
@@ -1138,7 +1138,7 @@ 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);