linux-kernel - [PATCH 05/23] watchdog: meson_wdt: Use 'dev' instead of dereferencing it repeatedly

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Message-Id: <1554830641-9247-6-git-send-email-linux@roeck-us.net>
Date:   Tue,  9 Apr 2019 10:23:43 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Wim Van Sebroeck <wim@...ux-watchdog.org>
Cc:     linux-watchdog@...r.kernel.org, linux-kernel@...r.kernel.org,
        Guenter Roeck <linux@...ck-us.net>,
        Kevin Hilman <khilman@...libre.com>
Subject: [PATCH 05/23] watchdog: meson_wdt: Use 'dev' instead of dereferencing it repeatedly

Introduce local variable 'struct device *dev' and use it instead of
dereferencing it repeatedly.

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

Cc: Kevin Hilman <khilman@...libre.com>
Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
 drivers/watchdog/meson_wdt.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/watchdog/meson_wdt.c b/drivers/watchdog/meson_wdt.c
index 7fc6acb33c7f..01889cef81e1 100644
--- a/drivers/watchdog/meson_wdt.c
+++ b/drivers/watchdog/meson_wdt.c
@@ -164,11 +164,12 @@ MODULE_DEVICE_TABLE(of, meson_wdt_dt_ids);
 
 static int meson_wdt_probe(struct platform_device *pdev)
 {
+	struct device *dev = &pdev->dev;
 	struct meson_wdt_dev *meson_wdt;
 	const struct of_device_id *of_id;
 	int err;
 
-	meson_wdt = devm_kzalloc(&pdev->dev, sizeof(*meson_wdt), GFP_KERNEL);
+	meson_wdt = devm_kzalloc(dev, sizeof(*meson_wdt), GFP_KERNEL);
 	if (!meson_wdt)
 		return -ENOMEM;
 
@@ -176,14 +177,14 @@ static int meson_wdt_probe(struct platform_device *pdev)
 	if (IS_ERR(meson_wdt->wdt_base))
 		return PTR_ERR(meson_wdt->wdt_base);
 
-	of_id = of_match_device(meson_wdt_dt_ids, &pdev->dev);
+	of_id = of_match_device(meson_wdt_dt_ids, dev);
 	if (!of_id) {
-		dev_err(&pdev->dev, "Unable to initialize WDT data\n");
+		dev_err(dev, "Unable to initialize WDT data\n");
 		return -ENODEV;
 	}
 	meson_wdt->data = of_id->data;
 
-	meson_wdt->wdt_dev.parent = &pdev->dev;
+	meson_wdt->wdt_dev.parent = dev;
 	meson_wdt->wdt_dev.info = &meson_wdt_info;
 	meson_wdt->wdt_dev.ops = &meson_wdt_ops;
 	meson_wdt->wdt_dev.max_timeout =
@@ -195,18 +196,18 @@ static int meson_wdt_probe(struct platform_device *pdev)
 
 	watchdog_set_drvdata(&meson_wdt->wdt_dev, meson_wdt);
 
-	watchdog_init_timeout(&meson_wdt->wdt_dev, timeout, &pdev->dev);
+	watchdog_init_timeout(&meson_wdt->wdt_dev, timeout, dev);
 	watchdog_set_nowayout(&meson_wdt->wdt_dev, nowayout);
 	watchdog_set_restart_priority(&meson_wdt->wdt_dev, 128);
 
 	meson_wdt_stop(&meson_wdt->wdt_dev);
 
 	watchdog_stop_on_reboot(&meson_wdt->wdt_dev);
-	err = devm_watchdog_register_device(&pdev->dev, &meson_wdt->wdt_dev);
+	err = devm_watchdog_register_device(dev, &meson_wdt->wdt_dev);
 	if (err)
 		return err;
 
-	dev_info(&pdev->dev, "Watchdog enabled (timeout=%d sec, nowayout=%d)",
+	dev_info(dev, "Watchdog enabled (timeout=%d sec, nowayout=%d)",
 		 meson_wdt->wdt_dev.timeout, nowayout);
 
 	return 0;
-- 
2.7.4