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watchdog: rc32434_wdt: use devm_ioremap_nocache() functions

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Use devm_ioremap_nocache() functions to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Jingoo Han 2013-04-30 14:01:41 +09:00 committed by Wim Van Sebroeck
parent 3666eb0288
commit 52ccc5aca4
1 changed files with 3 additions and 7 deletions
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10
drivers/watchdog/rc32434_wdt.c
View file

@ -32,6 +32,7 @@
#include <linux/platform_device.h> /* For platform_driver framework */
#include <linux/spinlock.h> /* For spin_lock/spin_unlock/... */
#include <linux/uaccess.h> /* For copy_to_user/put_user/... */
#include <linux/io.h> /* For devm_ioremap_nocache */
#include <asm/mach-rc32434/integ.h> /* For the Watchdog registers */
@ -271,7 +272,7 @@ static int rc32434_wdt_probe(struct platform_device *pdev)
return -ENODEV;
}
wdt_reg = ioremap_nocache(r->start, resource_size(r));
wdt_reg = devm_ioremap_nocache(&pdev->dev, r->start, resource_size(r));
if (!wdt_reg) {
pr_err("failed to remap I/O resources\n");
return -ENXIO;
@ -293,23 +294,18 @@ static int rc32434_wdt_probe(struct platform_device *pdev)
ret = misc_register(&rc32434_wdt_miscdev);
if (ret < 0) {
pr_err("failed to register watchdog device\n");
goto unmap;
return ret;
}
pr_info("Watchdog Timer version " VERSION ", timer margin: %d sec\n",
timeout);
return 0;
unmap:
iounmap(wdt_reg);
return ret;
}
static int rc32434_wdt_remove(struct platform_device *pdev)
{
misc_deregister(&rc32434_wdt_miscdev);
iounmap(wdt_reg);
return 0;
}