[patch] pxa168fb: use resource_size()

[Dan Carpenter]

The size calculation is not correct.  It should be end - start + 1.
Use resource_size() to caculate it.

Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
---
This was found by a static checker and I don't have the hardware to
test it.  Please review carefully.

diff --git a/drivers/video/pxa168fb.c b/drivers/video/pxa168fb.c
index 75285d3..c91a7f7 100644
--- a/drivers/video/pxa168fb.c
+++ b/drivers/video/pxa168fb.c
@@ -668,7 +668,7 @@ static int __init pxa168fb_probe(struct platform_device *pdev)
 	/*
 	 * Map LCD controller registers.
 	 */
-	fbi->reg_base = ioremap_nocache(res->start, res->end - res->start);
+	fbi->reg_base = ioremap_nocache(res->start, resource_size(res));
 	if (fbi->reg_base == NULL) {
 		ret = -ENOMEM;
 		goto failed;
--
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