watchdog: imx_sc_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: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

drivers/watchdog/imx_sc_wdt.c

@@ -101,10 +101,11 @@ static const struct watchdog_info imx_sc_wdt_info = {
 
 static int imx_sc_wdt_probe(struct platform_device *pdev)
 {
+	struct device *dev = &pdev->dev;
 	struct watchdog_device *imx_sc_wdd;
 	int ret;
 
-	imx_sc_wdd = devm_kzalloc(&pdev->dev, sizeof(*imx_sc_wdd), GFP_KERNEL);
+	imx_sc_wdd = devm_kzalloc(dev, sizeof(*imx_sc_wdd), GFP_KERNEL);
 	if (!imx_sc_wdd)
 		return -ENOMEM;
 
@@ -114,19 +115,19 @@ static int imx_sc_wdt_probe(struct platform_device *pdev)
 	imx_sc_wdd->ops = &imx_sc_wdt_ops;
 	imx_sc_wdd->min_timeout = 1;
 	imx_sc_wdd->max_timeout = MAX_TIMEOUT;
-	imx_sc_wdd->parent = &pdev->dev;
+	imx_sc_wdd->parent = dev;
 	imx_sc_wdd->timeout = DEFAULT_TIMEOUT;
 
-	ret = watchdog_init_timeout(imx_sc_wdd, 0, &pdev->dev);
+	ret = watchdog_init_timeout(imx_sc_wdd, 0, dev);
 	if (ret)
-		dev_warn(&pdev->dev, "Failed to set timeout value, using default\n");
+		dev_warn(dev, "Failed to set timeout value, using default\n");
 
 	watchdog_stop_on_reboot(imx_sc_wdd);
 	watchdog_stop_on_unregister(imx_sc_wdd);
 
-	ret = devm_watchdog_register_device(&pdev->dev, imx_sc_wdd);
+	ret = devm_watchdog_register_device(dev, imx_sc_wdd);
 	if (ret) {
-		dev_err(&pdev->dev, "Failed to register watchdog device\n");
+		dev_err(dev, "Failed to register watchdog device\n");
 		return ret;
 	}