From 64b849e28b8be15a5bb855890fd9ddb8be162db6 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Tue, 10 Jan 2017 15:21:47 -0800 Subject: [PATCH] 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 Signed-off-by: Guenter Roeck --- drivers/watchdog/da9063_wdt.c | 18 +----------------- 1 file changed, 1 insertion(+), 17 deletions(-) diff --git a/drivers/watchdog/da9063_wdt.c b/drivers/watchdog/da9063_wdt.c index 5d6b4e5..4691c55 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, }, -- 2.7.4