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authorGuenter Roeck <linux@roeck-us.net>2017-01-11 02:21:47 +0300
committerGuenter Roeck <linux@roeck-us.net>2017-02-25 01:00:23 +0300
commit64b849e28b8be15a5bb855890fd9ddb8be162db6 (patch)
tree43d18d088505e7b661d9d1c39f4a490260c030a8 /drivers/watchdog/da9063_wdt.c
parent528eff34dda07e98c7aeb2266d2bdb9c54439333 (diff)
downloadlinux-64b849e28b8be15a5bb855890fd9ddb8be162db6.tar.xz
watchdog: da9063_wdt: Convert to use device managed functions
Use device managed functions to simplify error handling, reduce source code size, improve readability, and reduce the likelyhood of bugs. 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 - Replace 'val = e; return val;' with 'return e;' - Replace 'if (e) return e; return 0;' with 'return e;' - Drop assignments to otherwise unused variables - Drop unused variables - Drop remove function - Drop dev_set_drvdata() - Use devm_watchdog_register_driver() to register watchdog device Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/watchdog/da9063_wdt.c')
-rw-r--r--drivers/watchdog/da9063_wdt.c18
1 files changed, 1 insertions, 17 deletions
diff --git a/drivers/watchdog/da9063_wdt.c b/drivers/watchdog/da9063_wdt.c
index 5d6b4e5f7989..4691c5509129 100644
--- a/drivers/watchdog/da9063_wdt.c
+++ b/drivers/watchdog/da9063_wdt.c
@@ -151,7 +151,6 @@ static const struct watchdog_ops da9063_watchdog_ops = {
static int da9063_wdt_probe(struct platform_device *pdev)
{
- int ret;
struct da9063 *da9063;
struct da9063_watchdog *wdt;
@@ -181,27 +180,12 @@ static int da9063_wdt_probe(struct platform_device *pdev)
watchdog_set_restart_priority(&wdt->wdtdev, 128);
watchdog_set_drvdata(&wdt->wdtdev, wdt);
- dev_set_drvdata(&pdev->dev, wdt);
-
- ret = watchdog_register_device(&wdt->wdtdev);
- if (ret)
- return ret;
-
- return 0;
-}
-
-static int da9063_wdt_remove(struct platform_device *pdev)
-{
- struct da9063_watchdog *wdt = dev_get_drvdata(&pdev->dev);
-
- watchdog_unregister_device(&wdt->wdtdev);
- return 0;
+ return devm_watchdog_register_device(&pdev->dev, &wdt->wdtdev);
}
static struct platform_driver da9063_wdt_driver = {
.probe = da9063_wdt_probe,
- .remove = da9063_wdt_remove,
.driver = {
.name = DA9063_DRVNAME_WATCHDOG,
},