linux-kernel - [trivial PATCH 1/2] treewide: Fix iomap resource size miscalculations

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Message-Id: <c4422b4a8ee132d3adac95fd86237c61b2f8b364.1300909446.git.joe@perches.com>
Date:	Wed, 23 Mar 2011 12:55:36 -0700
From:	Joe Perches <joe@...ches.com>
To:	Jiri Kosina <trivial@...nel.org>,
	Srinidhi Kasagar <srinidhi.kasagar@...ricsson.com>,
	Linus Walleij <linus.walleij@...ricsson.com>,
	David Brown <davidb@...eaurora.org>,
	Daniel Walker <dwalker@...o99.com>,
	Bryan Huntsman <bryanh@...eaurora.org>,
	Wim Van Sebroeck <wim@...ana.be>
Cc:	Russell King <linux@....linux.org.uk>,
	Ralf Baechle <ralf@...ux-mips.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-mips@...ux-mips.org, linux-arm-msm@...r.kernel.org,
	linux-fbdev@...r.kernel.org, linux-watchdog@...r.kernel.org
Subject: [trivial PATCH 1/2] treewide: Fix iomap resource size miscalculations

Convert off-by-1 r->end - r->start to resource_size(r)

Signed-off-by: Joe Perches <joe@...ches.com>
---
 arch/arm/mach-ux500/mbox-db5500.c |    6 ++----
 arch/mips/rb532/gpio.c            |    2 +-
 drivers/video/msm/mddi.c          |    2 +-
 drivers/watchdog/bcm63xx_wdt.c    |    2 +-
 4 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-ux500/mbox-db5500.c b/arch/arm/mach-ux500/mbox-db5500.c
index a4ffb9f..2b2d51c 100644
--- a/arch/arm/mach-ux500/mbox-db5500.c
+++ b/arch/arm/mach-ux500/mbox-db5500.c
@@ -416,8 +416,7 @@ struct mbox *mbox_setup(u8 mbox_id, mbox_recv_cb_t *mbox_cb, void *priv)
 	dev_dbg(&(mbox->pdev->dev),
 		"Resource name: %s start: 0x%X, end: 0x%X\n",
 		resource->name, resource->start, resource->end);
-	mbox->virtbase_peer =
-		ioremap(resource->start, resource->end - resource->start);
+	mbox->virtbase_peer = ioremap(resource->start, resource_size(resource));
 	if (!mbox->virtbase_peer) {
 		dev_err(&(mbox->pdev->dev), "Unable to ioremap peer mbox\n");
 		mbox = NULL;
@@ -440,8 +439,7 @@ struct mbox *mbox_setup(u8 mbox_id, mbox_recv_cb_t *mbox_cb, void *priv)
 	dev_dbg(&(mbox->pdev->dev),
 		"Resource name: %s start: 0x%X, end: 0x%X\n",
 		resource->name, resource->start, resource->end);
-	mbox->virtbase_local =
-		ioremap(resource->start, resource->end - resource->start);
+	mbox->virtbase_local = ioremap(resource->start, resource_size(resource));
 	if (!mbox->virtbase_local) {
 		dev_err(&(mbox->pdev->dev), "Unable to ioremap local mbox\n");
 		mbox = NULL;
diff --git a/arch/mips/rb532/gpio.c b/arch/mips/rb532/gpio.c
index 37de05d..6c47dfe 100644
--- a/arch/mips/rb532/gpio.c
+++ b/arch/mips/rb532/gpio.c
@@ -185,7 +185,7 @@ int __init rb532_gpio_init(void)
 	struct resource *r;
 
 	r = rb532_gpio_reg0_res;
-	rb532_gpio_chip->regbase = ioremap_nocache(r->start, r->end - r->start);
+	rb532_gpio_chip->regbase = ioremap_nocache(r->start, resource_size(r));
 
 	if (!rb532_gpio_chip->regbase) {
 		printk(KERN_ERR "rb532: cannot remap GPIO register 0\n");
diff --git a/drivers/video/msm/mddi.c b/drivers/video/msm/mddi.c
index b66d86a..178b072 100644
--- a/drivers/video/msm/mddi.c
+++ b/drivers/video/msm/mddi.c
@@ -679,7 +679,7 @@ static int __devinit mddi_probe(struct platform_device *pdev)
 		printk(KERN_ERR "mddi: no associated mem resource!\n");
 		return -ENOMEM;
 	}
-	mddi->base = ioremap(resource->start, resource->end - resource->start);
+	mddi->base = ioremap(resource->start, resource_size(resource));
 	if (!mddi->base) {
 		printk(KERN_ERR "mddi: failed to remap base!\n");
 		ret = -EINVAL;
diff --git a/drivers/watchdog/bcm63xx_wdt.c b/drivers/watchdog/bcm63xx_wdt.c
index 3c5045a..5064e83 100644
--- a/drivers/watchdog/bcm63xx_wdt.c
+++ b/drivers/watchdog/bcm63xx_wdt.c
@@ -248,7 +248,7 @@ static int __devinit bcm63xx_wdt_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	bcm63xx_wdt_device.regs = ioremap_nocache(r->start, r->end - r->start);
+	bcm63xx_wdt_device.regs = ioremap_nocache(r->start, resource_size(r));
 	if (!bcm63xx_wdt_device.regs) {
 		dev_err(&pdev->dev, "failed to remap I/O resources\n");
 		return -ENXIO;
-- 
1.7.4.2.g597a6.dirty

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