linux-kernel - [PATCH 04/22] watchdog: ts72xx_wdt: Use 'dev' instead of dereferencing it repeatedly

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Date:   Wed, 10 Apr 2019 09:27:45 -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>
Subject: [PATCH 04/22] watchdog: ts72xx_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

Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
 drivers/watchdog/ts72xx_wdt.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/watchdog/ts72xx_wdt.c b/drivers/watchdog/ts72xx_wdt.c
index 3aa11c84dea9..bf918f5fa131 100644
--- a/drivers/watchdog/ts72xx_wdt.c
+++ b/drivers/watchdog/ts72xx_wdt.c
@@ -122,11 +122,12 @@ static const struct watchdog_ops ts72xx_wdt_ops = {
 
 static int ts72xx_wdt_probe(struct platform_device *pdev)
 {
+	struct device *dev = &pdev->dev;
 	struct ts72xx_wdt_priv *priv;
 	struct watchdog_device *wdd;
 	int ret;
 
-	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 
@@ -143,20 +144,20 @@ static int ts72xx_wdt_probe(struct platform_device *pdev)
 	wdd->ops = &ts72xx_wdt_ops;
 	wdd->min_timeout = 1;
 	wdd->max_hw_heartbeat_ms = 8000;
-	wdd->parent = &pdev->dev;
+	wdd->parent = dev;
 
 	watchdog_set_nowayout(wdd, nowayout);
 
 	wdd->timeout = TS72XX_WDT_DEFAULT_TIMEOUT;
-	watchdog_init_timeout(wdd, timeout, &pdev->dev);
+	watchdog_init_timeout(wdd, timeout, dev);
 
 	watchdog_set_drvdata(wdd, priv);
 
-	ret = devm_watchdog_register_device(&pdev->dev, wdd);
+	ret = devm_watchdog_register_device(dev, wdd);
 	if (ret)
 		return ret;
 
-	dev_info(&pdev->dev, "TS-72xx Watchdog driver\n");
+	dev_info(dev, "TS-72xx Watchdog driver\n");
 
 	return 0;
 }
-- 
2.7.4