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authorGuenter Roeck <linux@roeck-us.net>2019-04-10 18:27:52 +0200
committerWim Van Sebroeck <wim@linux-watchdog.org>2019-05-05 21:02:34 +0200
commitf7daaa8d1e1cc1be74cba0e5ec52049435b295b6 (patch)
tree1a85d44971fb777d83c544bc6e0d46af54efe54a /drivers/watchdog
parentwatchdog: imx_sc_wdt: Use 'dev' instead of dereferencing it repeatedly (diff)
downloadlinux-f7daaa8d1e1cc1be74cba0e5ec52049435b295b6.tar.xz
linux-f7daaa8d1e1cc1be74cba0e5ec52049435b295b6.zip
watchdog: sbsa_gwdt: 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 assignments to otherwise unused variables - Drop empty remove function - Use local variable 'struct device *dev' consistently - Use devm_watchdog_register_driver() to register watchdog device - Replace shutdown function with call to watchdog_stop_on_reboot() Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers/watchdog')
-rw-r--r--drivers/watchdog/sbsa_gwdt.c21
1 files changed, 2 insertions, 19 deletions
diff --git a/drivers/watchdog/sbsa_gwdt.c b/drivers/watchdog/sbsa_gwdt.c
index 68aff828bf7e..e17af8939c93 100644
--- a/drivers/watchdog/sbsa_gwdt.c
+++ b/drivers/watchdog/sbsa_gwdt.c
@@ -310,7 +310,8 @@ static int sbsa_gwdt_probe(struct platform_device *pdev)
*/
sbsa_gwdt_set_timeout(wdd, wdd->timeout);
- ret = watchdog_register_device(wdd);
+ watchdog_stop_on_reboot(wdd);
+ ret = devm_watchdog_register_device(dev, wdd);
if (ret)
return ret;
@@ -321,22 +322,6 @@ static int sbsa_gwdt_probe(struct platform_device *pdev)
return 0;
}
-static void sbsa_gwdt_shutdown(struct platform_device *pdev)
-{
- struct sbsa_gwdt *gwdt = platform_get_drvdata(pdev);
-
- sbsa_gwdt_stop(&gwdt->wdd);
-}
-
-static int sbsa_gwdt_remove(struct platform_device *pdev)
-{
- struct sbsa_gwdt *gwdt = platform_get_drvdata(pdev);
-
- watchdog_unregister_device(&gwdt->wdd);
-
- return 0;
-}
-
/* Disable watchdog if it is active during suspend */
static int __maybe_unused sbsa_gwdt_suspend(struct device *dev)
{
@@ -382,8 +367,6 @@ static struct platform_driver sbsa_gwdt_driver = {
.of_match_table = sbsa_gwdt_of_match,
},
.probe = sbsa_gwdt_probe,
- .remove = sbsa_gwdt_remove,
- .shutdown = sbsa_gwdt_shutdown,
.id_table = sbsa_gwdt_pdev_match,
};