linux-kernel - [WATCHDOG] v2.6.32-rc8 fix - rc32434_wdt.c: correct size for ioremap

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Message-ID: <20091202101624.GP3772@infomag.iguana.be>
Date:	Wed, 2 Dec 2009 11:16:24 +0100
From:	Wim Van Sebroeck <wim@...ana.be>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	H Hartley Sweeten <hsweeten@...ionengravers.com>
Subject: [WATCHDOG] v2.6.32-rc8 fix - rc32434_wdt.c: correct size for
	ioremap_nocache

Hi Linus,

Please pull from 'master' branch of
	git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog.git
or if master.kernel.org hasn't synced up yet:
	master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog.git

This will update the following files:

 drivers/watchdog/rc32434_wdt.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

with these Changes:

Author: H Hartley Sweeten <hartleys@...ionengravers.com>
Date:   Tue Nov 24 21:06:26 2009 -0500

    [WATCHDOG] rc32434_wdt.c: use resource_size()
    
    The size value passed to ioremap_nocache() is not correct.
    Use resource_size() to get the correct value.
    
    Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>
    Cc: Phil Sutter <n0-1@...ewrt.org>
    Signed-off-by: Wim Van Sebroeck <wim@...ana.be>

The Changes can also be looked at on:
	http://www.kernel.org/git/?p=linux/kernel/git/wim/linux-2.6-watchdog.git;a=summary

For completeness, I added the overal diff below.

Greetings,
Wim.

================================================================================
diff --git a/drivers/watchdog/rc32434_wdt.c b/drivers/watchdog/rc32434_wdt.c
index f6cccc9..3764af1 100644
--- a/drivers/watchdog/rc32434_wdt.c
+++ b/drivers/watchdog/rc32434_wdt.c
@@ -276,7 +276,7 @@ static int __devinit rc32434_wdt_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	wdt_reg = ioremap_nocache(r->start, r->end - r->start);
+	wdt_reg = ioremap_nocache(r->start, resource_size(r));
 	if (!wdt_reg) {
 		printk(KERN_ERR PFX "failed to remap I/O resources\n");
 		return -ENXIO;
--
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