linux-kernel - [PATCH 09/22] watchdog: da9052_wdt: Use 'dev' instead of dereferencing it repeatedly

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Date:   Mon,  8 Apr 2019 12:38:33 -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>,
        Support Opensource <support.opensource@...semi.com>
Subject: [PATCH 09/22] watchdog: da9052_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: Support Opensource <support.opensource@...semi.com>
Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
 drivers/watchdog/da9052_wdt.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/watchdog/da9052_wdt.c b/drivers/watchdog/da9052_wdt.c
index e263bad99574..a2feef1ff307 100644
--- a/drivers/watchdog/da9052_wdt.c
+++ b/drivers/watchdog/da9052_wdt.c
@@ -150,13 +150,13 @@ static const struct watchdog_ops da9052_wdt_ops = {
 
 static int da9052_wdt_probe(struct platform_device *pdev)
 {
-	struct da9052 *da9052 = dev_get_drvdata(pdev->dev.parent);
+	struct device *dev = &pdev->dev;
+	struct da9052 *da9052 = dev_get_drvdata(dev->parent);
 	struct da9052_wdt_data *driver_data;
 	struct watchdog_device *da9052_wdt;
 	int ret;
 
-	driver_data = devm_kzalloc(&pdev->dev, sizeof(*driver_data),
-				   GFP_KERNEL);
+	driver_data = devm_kzalloc(dev, sizeof(*driver_data), GFP_KERNEL);
 	if (!driver_data)
 		return -ENOMEM;
 	driver_data->da9052 = da9052;
@@ -166,18 +166,17 @@ static int da9052_wdt_probe(struct platform_device *pdev)
 	da9052_wdt->timeout = DA9052_DEF_TIMEOUT;
 	da9052_wdt->info = &da9052_wdt_info;
 	da9052_wdt->ops = &da9052_wdt_ops;
-	da9052_wdt->parent = &pdev->dev;
+	da9052_wdt->parent = dev;
 	watchdog_set_drvdata(da9052_wdt, driver_data);
 
 	ret = da9052_reg_update(da9052, DA9052_CONTROL_D_REG,
 				DA9052_CONTROLD_TWDSCALE, 0);
 	if (ret < 0) {
-		dev_err(&pdev->dev, "Failed to disable watchdog bits, %d\n",
-			ret);
+		dev_err(dev, "Failed to disable watchdog bits, %d\n", ret);
 		return ret;
 	}
 
-	ret = devm_watchdog_register_device(&pdev->dev, &driver_data->wdt);
+	ret = devm_watchdog_register_device(dev, &driver_data->wdt);
 	if (ret != 0) {
 		dev_err(da9052->dev, "watchdog_register_device() failed: %d\n",
 			ret);
-- 
2.7.4