Input: use resource_size when allocating resources

Use the function resource_size, which reduces the chance of
introducing off-by-one errors in calculating the resource size.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
struct resource *res;
@@

- (res->end - res->start) + 1
+ resource_size(res)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/input/misc/cobalt_btns.c b/drivers/input/misc/cobalt_btns.c
index 2adf9cb265da..d01da9bd5da4 100644
--- a/drivers/input/misc/cobalt_btns.c
+++ b/drivers/input/misc/cobalt_btns.c
@@ -116,7 +116,7 @@ static int __devinit cobalt_buttons_probe(struct platform_device *pdev)
         }
 
         bdev->poll_dev = poll_dev;
-        bdev->reg = ioremap(res->start, res->end - res->start + 1);
+        bdev->reg = ioremap(res->start, resource_size(res));
         dev_set_drvdata(&pdev->dev, bdev);
 
         error = input_register_polled_device(poll_dev);