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authorGuenter Roeck <linux@roeck-us.net>2019-04-10 19:27:55 +0300
committerWim Van Sebroeck <wim@linux-watchdog.org>2019-05-05 22:02:35 +0300
commit89e5b7aca183a3237a730c5cdbd2c7279fe66f10 (patch)
tree8e71b19c38e6a0630d4adb8cf14b701784b3dbc8 /drivers/watchdog/ux500_wdt.c
parent1f53305877fae6089c81dbce8109df02e6b2e26e (diff)
downloadlinux-89e5b7aca183a3237a730c5cdbd2c7279fe66f10.tar.xz
watchdog: ux500_wdt: Convert to use device managed functions and other improvements
Use device managed functions to simplify error handling, reduce source code size, improve readability, and reduce the likelyhood of bugs. Other improvements as listed below. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches - Drop empty remove function - Introduce local variable 'struct device *dev' and use it instead of dereferencing it repeatedly - Use devm_watchdog_register_driver() to register watchdog device Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers/watchdog/ux500_wdt.c')
-rw-r--r--drivers/watchdog/ux500_wdt.c17
1 files changed, 5 insertions, 12 deletions
diff --git a/drivers/watchdog/ux500_wdt.c b/drivers/watchdog/ux500_wdt.c
index 37c084353cce..9fa7f95f7554 100644
--- a/drivers/watchdog/ux500_wdt.c
+++ b/drivers/watchdog/ux500_wdt.c
@@ -86,8 +86,9 @@ static struct watchdog_device ux500_wdt = {
static int ux500_wdt_probe(struct platform_device *pdev)
{
+ struct device *dev = &pdev->dev;
int ret;
- struct ux500_wdt_data *pdata = dev_get_platdata(&pdev->dev);
+ struct ux500_wdt_data *pdata = dev_get_platdata(dev);
if (pdata) {
if (pdata->timeout > 0)
@@ -96,7 +97,7 @@ static int ux500_wdt_probe(struct platform_device *pdev)
ux500_wdt.max_timeout = WATCHDOG_MAX28;
}
- ux500_wdt.parent = &pdev->dev;
+ ux500_wdt.parent = dev;
watchdog_set_nowayout(&ux500_wdt, nowayout);
/* disable auto off on sleep */
@@ -105,18 +106,11 @@ static int ux500_wdt_probe(struct platform_device *pdev)
/* set HW initial value */
prcmu_load_a9wdog(PRCMU_WDOG_ALL, timeout * 1000);
- ret = watchdog_register_device(&ux500_wdt);
+ ret = devm_watchdog_register_device(dev, &ux500_wdt);
if (ret)
return ret;
- dev_info(&pdev->dev, "initialized\n");
-
- return 0;
-}
-
-static int ux500_wdt_remove(struct platform_device *dev)
-{
- watchdog_unregister_device(&ux500_wdt);
+ dev_info(dev, "initialized\n");
return 0;
}
@@ -153,7 +147,6 @@ static int ux500_wdt_resume(struct platform_device *pdev)
static struct platform_driver ux500_wdt_driver = {
.probe = ux500_wdt_probe,
- .remove = ux500_wdt_remove,
.suspend = ux500_wdt_suspend,
.resume = ux500_wdt_resume,
.driver = {