From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 10 Mar 2010 23:23:13 +0000 (-0800)
Subject: edac: mpc85xx use resource_size instead of raw math
X-Git-Tag: firefly_0821_release~9833^2~2668
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=66ed3f7516da31205aed9b47a13348c0d982c4f5;p=firefly-linux-kernel-4.4.55.git

edac: mpc85xx use resource_size instead of raw math

Use resource_size() instead of arithmetic.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Acked-by: Dave Jiang <djiang@mvista.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Kumar Gala <galak@gate.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/mpc85xx_edac.c
index 517042fafa78..94cac0aacea3 100644
--- a/drivers/edac/mpc85xx_edac.c
+++ b/drivers/edac/mpc85xx_edac.c
@@ -239,16 +239,15 @@ static int __devinit mpc85xx_pci_err_probe(struct of_device *op,
 	/* we only need the error registers */
 	r.start += 0xe00;
 
-	if (!devm_request_mem_region(&op->dev, r.start,
-					r.end - r.start + 1, pdata->name)) {
+	if (!devm_request_mem_region(&op->dev, r.start, resource_size(&r),
+					pdata->name)) {
 		printk(KERN_ERR "%s: Error while requesting mem region\n",
 		       __func__);
 		res = -EBUSY;
 		goto err;
 	}
 
-	pdata->pci_vbase = devm_ioremap(&op->dev, r.start,
-					r.end - r.start + 1);
+	pdata->pci_vbase = devm_ioremap(&op->dev, r.start, resource_size(&r));
 	if (!pdata->pci_vbase) {
 		printk(KERN_ERR "%s: Unable to setup PCI err regs\n", __func__);
 		res = -ENOMEM;