Messages in this thread Patch in this message | | | From | Guenter Roeck <> | Subject | [PATCH 20/23] watchdog: stmp3xxx_rtc_wdt: Convert to use device managed functions | Date | Tue, 9 Apr 2019 10:23:58 -0700 |
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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
- Introduce local variable 'struct device *dev' and use it instead of dereferencing it repeatedly - Use devm_watchdog_register_driver() to register watchdog device
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> --- drivers/watchdog/stmp3xxx_rtc_wdt.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/watchdog/stmp3xxx_rtc_wdt.c b/drivers/watchdog/stmp3xxx_rtc_wdt.c index 994c54cc68e9..671f4ba7b4ed 100644 --- a/drivers/watchdog/stmp3xxx_rtc_wdt.c +++ b/drivers/watchdog/stmp3xxx_rtc_wdt.c @@ -89,31 +89,31 @@ static struct notifier_block wdt_notifier = { static int stmp3xxx_wdt_probe(struct platform_device *pdev) { + struct device *dev = &pdev->dev; int ret; - watchdog_set_drvdata(&stmp3xxx_wdd, &pdev->dev); + watchdog_set_drvdata(&stmp3xxx_wdd, dev); stmp3xxx_wdd.timeout = clamp_t(unsigned, heartbeat, 1, STMP3XXX_MAX_TIMEOUT); - stmp3xxx_wdd.parent = &pdev->dev; + stmp3xxx_wdd.parent = dev; - ret = watchdog_register_device(&stmp3xxx_wdd); + ret = devm_watchdog_register_device(dev, &stmp3xxx_wdd); if (ret < 0) { - dev_err(&pdev->dev, "cannot register watchdog device\n"); + dev_err(dev, "cannot register watchdog device\n"); return ret; } if (register_reboot_notifier(&wdt_notifier)) - dev_warn(&pdev->dev, "cannot register reboot notifier\n"); + dev_warn(dev, "cannot register reboot notifier\n"); - dev_info(&pdev->dev, "initialized watchdog with heartbeat %ds\n", - stmp3xxx_wdd.timeout); + dev_info(dev, "initialized watchdog with heartbeat %ds\n", + stmp3xxx_wdd.timeout); return 0; } static int stmp3xxx_wdt_remove(struct platform_device *pdev) { unregister_reboot_notifier(&wdt_notifier); - watchdog_unregister_device(&stmp3xxx_wdd); return 0; } -- 2.7.4
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