watchdog: mlx_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-patchesSigned-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

drivers/watchdog/mlx_wdt.c

@@ -233,20 +233,21 @@ static int mlxreg_wdt_init_timeout(struct mlxreg_wdt *wdt,
 
 static int mlxreg_wdt_probe(struct platform_device *pdev)
 {
+	struct device *dev = &pdev->dev;
 	struct mlxreg_core_platform_data *pdata;
 	struct mlxreg_wdt *wdt;
 	int rc;
 
-	pdata = dev_get_platdata(&pdev->dev);
+	pdata = dev_get_platdata(dev);
 	if (!pdata) {
-		dev_err(&pdev->dev, "Failed to get platform data.\n");
+		dev_err(dev, "Failed to get platform data.\n");
 		return -EINVAL;
 	}
-	wdt = devm_kzalloc(&pdev->dev, sizeof(*wdt), GFP_KERNEL);
+	wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL);
 	if (!wdt)
 		return -ENOMEM;
 
-	wdt->wdd.parent = &pdev->dev;
+	wdt->wdd.parent = dev;
 	wdt->regmap = pdata->regmap;
 	mlxreg_wdt_config(wdt, pdata);
 
@@ -266,12 +267,11 @@ static int mlxreg_wdt_probe(struct platform_device *pdev)
 		set_bit(WDOG_HW_RUNNING, &wdt->wdd.status);
 	}
 	mlxreg_wdt_check_card_reset(wdt);
-	rc = devm_watchdog_register_device(&pdev->dev, &wdt->wdd);
+	rc = devm_watchdog_register_device(dev, &wdt->wdd);
 
 register_error:
 	if (rc)
-		dev_err(&pdev->dev,
-			"Cannot register watchdog device (err=%d)\n", rc);
+		dev_err(dev, "Cannot register watchdog device (err=%d)\n", rc);
 	return rc;
 }