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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
commit528eff34dda07e98c7aeb2266d2bdb9c54439333 (patch)
tree5d7cfbb308be3af6e8683653c3c91e44f2e08ffb /drivers/watchdog
parent89f944c0f9abce176cf442894d29a7ab25f81c76 (diff)
downloadlinux-528eff34dda07e98c7aeb2266d2bdb9c54439333.tar.xz
watchdog: da9062_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;' - Drop assignments to otherwise 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')
-rw-r--r--drivers/watchdog/da9062_wdt.c18
1 files changed, 2 insertions, 16 deletions
diff --git a/drivers/watchdog/da9062_wdt.c b/drivers/watchdog/da9062_wdt.c
index a02cee6820a1..9083d3d922b0 100644
--- a/drivers/watchdog/da9062_wdt.c
+++ b/drivers/watchdog/da9062_wdt.c
@@ -220,9 +220,8 @@ static int da9062_wdt_probe(struct platform_device *pdev)
wdt->wdtdev.parent = &pdev->dev;
watchdog_set_drvdata(&wdt->wdtdev, wdt);
- dev_set_drvdata(&pdev->dev, wdt);
- ret = watchdog_register_device(&wdt->wdtdev);
+ ret = devm_watchdog_register_device(&pdev->dev, &wdt->wdtdev);
if (ret < 0) {
dev_err(wdt->hw->dev,
"watchdog registration failed (%d)\n", ret);
@@ -231,24 +230,11 @@ static int da9062_wdt_probe(struct platform_device *pdev)
da9062_set_window_start(wdt);
- ret = da9062_wdt_ping(&wdt->wdtdev);
- if (ret < 0)
- watchdog_unregister_device(&wdt->wdtdev);
-
- return ret;
-}
-
-static int da9062_wdt_remove(struct platform_device *pdev)
-{
- struct da9062_watchdog *wdt = dev_get_drvdata(&pdev->dev);
-
- watchdog_unregister_device(&wdt->wdtdev);
- return 0;
+ return da9062_wdt_ping(&wdt->wdtdev);
}
static struct platform_driver da9062_wdt_driver = {
.probe = da9062_wdt_probe,
- .remove = da9062_wdt_remove,
.driver = {
.name = "da9062-watchdog",
.of_match_table = da9062_compatible_id_table,