mtd: drivers/mtd/nand/gpio.c: use resource_size()

Use resource_size().

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

diff --git a/drivers/mtd/nand/gpio.c b/drivers/mtd/nand/gpio.c
index 8f902e75aa85d49c6eb25cb81fc22b702a8f63a8..0cde618bcc1e15022612ee0177e02fada244c873 100644 (file)
--- a/drivers/mtd/nand/gpio.c
+++ b/drivers/mtd/nand/gpio.c
@@ -181,11 +181,11 @@ static int __devexit gpio_nand_remove(struct platform_device *dev)
        res = platform_get_resource(dev, IORESOURCE_MEM, 1);
        iounmap(gpiomtd->io_sync);
        if (res)
-               release_mem_region(res->start, res->end - res->start + 1);
+               release_mem_region(res->start, resource_size(res));
 
        res = platform_get_resource(dev, IORESOURCE_MEM, 0);
        iounmap(gpiomtd->nand_chip.IO_ADDR_R);
-       release_mem_region(res->start, res->end - res->start + 1);
+       release_mem_region(res->start, resource_size(res));
 
        if (gpio_is_valid(gpiomtd->plat.gpio_nwp))
                gpio_set_value(gpiomtd->plat.gpio_nwp, 0);
@@ -208,14 +208,14 @@ static void __iomem *request_and_remap(struct resource *res, size_t size,
 {
        void __iomem *ptr;
 
-       if (!request_mem_region(res->start, res->end - res->start + 1, name)) {
+       if (!request_mem_region(res->start, resource_size(res), name)) {
                *err = -EBUSY;
                return NULL;
        }
 
        ptr = ioremap(res->start, size);
        if (!ptr) {
-               release_mem_region(res->start, res->end - res->start + 1);
+               release_mem_region(res->start, resource_size(res));
                *err = -ENOMEM;
        }
        return ptr;
@@ -338,10 +338,10 @@ err_nwp:
 err_nce:
        iounmap(gpiomtd->io_sync);
        if (res1)
-               release_mem_region(res1->start, res1->end - res1->start + 1);
+               release_mem_region(res1->start, resource_size(res1));
 err_sync:
        iounmap(gpiomtd->nand_chip.IO_ADDR_R);
-       release_mem_region(res0->start, res0->end - res0->start + 1);
+       release_mem_region(res0->start, resource_size(res0));
 err_map:
        kfree(gpiomtd);
        return ret;