[PATCH -next] mfd: altera-sysmgr: Use resource_size function on resource object

[Zou Wei]

./drivers/mfd/altera-sysmgr.c:155:36-39: WARNING: Suspicious code. 
resource_size is maybe missing with res

Generated by: scripts/coccinelle/api/resource_size.cocci

Signed-off-by: Zou Wei <zou_...@huawei.com>
---
 drivers/mfd/altera-sysmgr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/altera-sysmgr.c b/drivers/mfd/altera-sysmgr.c
index 41076d1..193a96c 100644
--- a/drivers/mfd/altera-sysmgr.c
+++ b/drivers/mfd/altera-sysmgr.c
@@ -152,7 +152,7 @@ static int sysmgr_probe(struct platform_device *pdev)
                if (!base)
                        return -ENOMEM;
 
-               sysmgr_config.max_register = res->end - res->start - 3;
+               sysmgr_config.max_register = resource_size(res) - 3;
                regmap = devm_regmap_init_mmio(dev, base, &sysmgr_config);
        }
 
-- 
2.6.2