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watchdog: Convert to devm_ioremap_resource() 

Use the newly introduced devm_ioremap_resource() instead of
devm_request_and_ioremap() which provides more consistent error handling.

devm_ioremap_resource() provides its own error messages; so all explicit
error messages can be removed from the failure code paths.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Gabor Juhos <juhosg@openwrt.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Sachin Kamat 2013-03-04 10:36:41 +05:30 committed by Wim Van Sebroeck
parent e0fd9affeb
commit 6330c7070b
4 changed files with 14 additions and 17 deletions
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8
drivers/watchdog/ath79_wdt.c
View File

@ -253,11 +253,9 @@ static int ath79_wdt_probe(struct platform_device *pdev)
return -EINVAL;
}
wdt_base = devm_request_and_ioremap(&pdev->dev, res);
if (!wdt_base) {
dev_err(&pdev->dev, "unable to remap memory region\n");
return -ENOMEM;
}
wdt_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(wdt_base))
return PTR_ERR(wdt_base);
wdt_clk = devm_clk_get(&pdev->dev, "wdt");
if (IS_ERR(wdt_clk))

9
drivers/watchdog/davinci_wdt.c
View File

@ -27,6 +27,7 @@
#include <linux/device.h>
#include <linux/clk.h>
#include <linux/slab.h>
#include <linux/err.h>
#define MODULE_NAME "DAVINCI-WDT: "
@ -221,11 +222,9 @@ static int davinci_wdt_probe(struct platform_device *pdev)
return -ENOENT;
}
wdt_base = devm_request_and_ioremap(dev, wdt_mem);
if (!wdt_base) {
dev_err(dev, "ioremap failed\n");
return -EADDRNOTAVAIL;
}
wdt_base = devm_ioremap_resource(dev, wdt_mem);
if (IS_ERR(wdt_base))
return PTR_ERR(wdt_base);
ret = misc_register(&davinci_wdt_miscdev);
if (ret < 0) {

7
drivers/watchdog/s3c2410_wdt.c
View File

@ -330,10 +330,9 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
}
/* get the memory region for the watchdog timer */
wdt_base = devm_request_and_ioremap(dev, wdt_mem);
if (wdt_base == NULL) {
dev_err(dev, "failed to devm_request_and_ioremap() region\n");
ret = -ENOMEM;
wdt_base = devm_ioremap_resource(dev, wdt_mem);
if (IS_ERR(wdt_base)) {
ret = PTR_ERR(wdt_base);
goto err;
}

7
drivers/watchdog/shwdt.c
View File

@ -34,6 +34,7 @@
#include <linux/slab.h>
#include <linux/io.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <asm/watchdog.h>
#define DRV_NAME "sh-wdt"
@ -249,9 +250,9 @@ static int sh_wdt_probe(struct platform_device *pdev)
wdt->clk = NULL;
}
wdt->base = devm_request_and_ioremap(wdt->dev, res);
if (unlikely(!wdt->base)) {
rc = -EADDRNOTAVAIL;
wdt->base = devm_ioremap_resource(wdt->dev, res);
if (IS_ERR(wdt->base)) {
rc = PTR_ERR(wdt->base);
goto err;
}