omap: rng: Use resource_size instead of manual calculation

Use the resource_size function instead of manually calculating the
resource size. This reduces the chance of introducing off-by-one-errors.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
This commit is contained in:
Tobias Klauser 2009-09-24 16:23:18 -07:00 committed by Tony Lindgren
parent 44e74840d6
commit 0fd92a15a0

View File

@ -116,7 +116,7 @@ static int __devinit omap_rng_probe(struct platform_device *pdev)
if (!res)
return -ENOENT;
mem = request_mem_region(res->start, res->end - res->start + 1,
mem = request_mem_region(res->start, resource_size(res),
pdev->name);
if (mem == NULL) {
ret = -EBUSY;
@ -124,7 +124,7 @@ static int __devinit omap_rng_probe(struct platform_device *pdev)
}
dev_set_drvdata(&pdev->dev, mem);
rng_base = ioremap(res->start, res->end - res->start + 1);
rng_base = ioremap(res->start, resource_size(res));
if (!rng_base) {
ret = -ENOMEM;
goto err_ioremap;