[media] davinci vpbe: Use resource_size()

Author: Thomas Meyer <thomas@m3y3r.de>

 Use resource_size function on resource object
 instead of explicit computation.

 The semantic patch that makes this output is available
 in scripts/coccinelle/api/resource_size.cocci.

 More information about semantic patching is available at
 http://coccinelle.lip6.fr/

Signed-off-by: Thomas Meyer 
Signed-off-by: Mauro Carvalho Chehab 
---
 drivers/media/video/davinci/vpbe_osd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 
diff --git a/drivers/media/video/davinci/vpbe_osd.c b/drivers/media/video/davinci/vpbe_osd.c
index 5352884..ceccf43 100644
--- a/drivers/media/video/davinci/vpbe_osd.c
+++ b/drivers/media/video/davinci/vpbe_osd.c
@@ -1162,7 +1162,7 @@ static int osd_probe(struct platform_device *pdev)
 		goto free_mem;
 	}
 	osd->osd_base_phys = res->start;
-	osd->osd_size = res->end - res->start + 1;
+	osd->osd_size = resource_size(res);
 	if (!request_mem_region(osd->osd_base_phys, osd->osd_size,
 				MODULE_NAME)) {
 		dev_err(osd->dev, "Unable to reserve OSD MMIO region\n");