ethoc: Use resource_size

Use the resource_size function instead of manually calculating the
resource size.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/net/ethoc.c b/drivers/net/ethoc.c
index bd1db92aec1b..f9d5ca078743 100644
--- a/drivers/net/ethoc.c
+++ b/drivers/net/ethoc.c
@@ -904,7 +904,7 @@ static int ethoc_probe(struct platform_device *pdev)
         }
 
         mmio = devm_request_mem_region(&pdev->dev, res->start,
-                        res->end - res->start + 1, res->name);
+                        resource_size(res), res->name);
         if (!mmio) {
                 dev_err(&pdev->dev, "cannot request I/O memory space\n");
                 ret = -ENXIO;
@@ -917,7 +917,7 @@ static int ethoc_probe(struct platform_device *pdev)
         res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
         if (res) {
                 mem = devm_request_mem_region(&pdev->dev, res->start,
-                        res->end - res->start + 1, res->name);
+                        resource_size(res), res->name);
                 if (!mem) {
                         dev_err(&pdev->dev, "cannot request memory space\n");
                         ret = -ENXIO;
@@ -945,7 +945,7 @@ static int ethoc_probe(struct platform_device *pdev)
         priv->dma_alloc = 0;
 
         priv->iobase = devm_ioremap_nocache(&pdev->dev, netdev->base_addr,
-                        mmio->end - mmio->start + 1);
+                        resource_size(mmio));
         if (!priv->iobase) {
                 dev_err(&pdev->dev, "cannot remap I/O memory space\n");
                 ret = -ENXIO;
@@ -954,7 +954,7 @@ static int ethoc_probe(struct platform_device *pdev)
 
         if (netdev->mem_end) {
                 priv->membase = devm_ioremap_nocache(&pdev->dev,
-                        netdev->mem_start, mem->end - mem->start + 1);
+                        netdev->mem_start, resource_size(mem));
                 if (!priv->membase) {
                         dev_err(&pdev->dev, "cannot remap memory space\n");
                         ret = -ENXIO;