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authorGuenter Roeck <linux@roeck-us.net>2017-01-10 15:21:50 -0800
committerGuenter Roeck <linux@roeck-us.net>2017-02-24 14:00:23 -0800
commit396164b7407b7419a459c1905e9c8a91cb3c307f (patch)
treeeb40432b70e4b22a2007e99bf2f6aa9783ed19de /drivers/watchdog/intel-mid_wdt.c
parentc8841a606740867d7283b37dd948ece281add3d6 (diff)
downloadlinux-396164b7407b7419a459c1905e9c8a91cb3c307f.tar.bz2
watchdog: intel-mid_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 - Drop assignments to otherwise unused variables - Drop remove function - Drop platform_set_drvdata() - Use devm_watchdog_register_driver() to register watchdog device Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/watchdog/intel-mid_wdt.c')
-rw-r--r--drivers/watchdog/intel-mid_wdt.c11
1 files changed, 1 insertions, 10 deletions
diff --git a/drivers/watchdog/intel-mid_wdt.c b/drivers/watchdog/intel-mid_wdt.c
index a4b729259b12..45e4d02221b5 100644
--- a/drivers/watchdog/intel-mid_wdt.c
+++ b/drivers/watchdog/intel-mid_wdt.c
@@ -137,7 +137,6 @@ static int mid_wdt_probe(struct platform_device *pdev)
wdt_dev->parent = &pdev->dev;
watchdog_set_drvdata(wdt_dev, &pdev->dev);
- platform_set_drvdata(pdev, wdt_dev);
ret = devm_request_irq(&pdev->dev, pdata->irq, mid_wdt_irq,
IRQF_SHARED | IRQF_NO_SUSPEND, "watchdog",
@@ -151,7 +150,7 @@ static int mid_wdt_probe(struct platform_device *pdev)
/* Make sure the watchdog is not running */
wdt_stop(wdt_dev);
- ret = watchdog_register_device(wdt_dev);
+ ret = devm_watchdog_register_device(&pdev->dev, wdt_dev);
if (ret) {
dev_err(&pdev->dev, "error registering watchdog device\n");
return ret;
@@ -162,16 +161,8 @@ static int mid_wdt_probe(struct platform_device *pdev)
return 0;
}
-static int mid_wdt_remove(struct platform_device *pdev)
-{
- struct watchdog_device *wd = platform_get_drvdata(pdev);
- watchdog_unregister_device(wd);
- return 0;
-}
-
static struct platform_driver mid_wdt_driver = {
.probe = mid_wdt_probe,
- .remove = mid_wdt_remove,
.driver = {
.name = "intel_mid_wdt",
},