[12/12] omap: rng: Use resource_size instead of manual calculation

Commit Message

Tony Lindgren Sept. 24, 2009, 11:47 p.m. UTC

From: Tobias Klauser <[e-mail]>

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 <[e-mail]>
---
 drivers/char/hw_random/omap-rng.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)


--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to [e-mail]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Patch

diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index 00dd3de..06aad08 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -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;