watchdog: rza_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/rza_wdt.c

@@ -166,11 +166,12 @@ static const struct watchdog_ops rza_wdt_ops = {
 
 static int rza_wdt_probe(struct platform_device *pdev)
 {
+	struct device *dev = &pdev->dev;
 	struct rza_wdt *priv;
 	unsigned long rate;
 	int ret;
 
-	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 
@@ -178,21 +179,21 @@ static int rza_wdt_probe(struct platform_device *pdev)
 	if (IS_ERR(priv->base))
 		return PTR_ERR(priv->base);
 
-	priv->clk = devm_clk_get(&pdev->dev, NULL);
+	priv->clk = devm_clk_get(dev, NULL);
 	if (IS_ERR(priv->clk))
 		return PTR_ERR(priv->clk);
 
 	rate = clk_get_rate(priv->clk);
 	if (rate < 16384) {
-		dev_err(&pdev->dev, "invalid clock rate (%ld)\n", rate);
+		dev_err(dev, "invalid clock rate (%ld)\n", rate);
 		return -ENOENT;
 	}
 
 	priv->wdev.info = &rza_wdt_ident,
 	priv->wdev.ops = &rza_wdt_ops,
-	priv->wdev.parent = &pdev->dev;
+	priv->wdev.parent = dev;
 
-	priv->cks = (u8)(uintptr_t)of_device_get_match_data(&pdev->dev);
+	priv->cks = (u8)(uintptr_t) of_device_get_match_data(dev);
 	if (priv->cks == CKS_4BIT) {
 		/* Assume slowest clock rate possible (CKS=0xF) */
 		priv->wdev.max_timeout = (DIVIDER_4BIT * U8_MAX) / rate;
@@ -207,19 +208,19 @@ static int rza_wdt_probe(struct platform_device *pdev)
 		 * max_hw_heartbeat_ms.
 		 */
 		priv->wdev.max_hw_heartbeat_ms = (1000 * U8_MAX) / rate;
-		dev_dbg(&pdev->dev, "max hw timeout of %dms\n",
-			 priv->wdev.max_hw_heartbeat_ms);
+		dev_dbg(dev, "max hw timeout of %dms\n",
+			priv->wdev.max_hw_heartbeat_ms);
 	}
 
 	priv->wdev.min_timeout = 1;
 	priv->wdev.timeout = DEFAULT_TIMEOUT;
 
-	watchdog_init_timeout(&priv->wdev, 0, &pdev->dev);
+	watchdog_init_timeout(&priv->wdev, 0, dev);
 	watchdog_set_drvdata(&priv->wdev, priv);
 
-	ret = devm_watchdog_register_device(&pdev->dev, &priv->wdev);
+	ret = devm_watchdog_register_device(dev, &priv->wdev);
 	if (ret)
-		dev_err(&pdev->dev, "Cannot register watchdog device\n");
+		dev_err(dev, "Cannot register watchdog device\n");
 
 	return ret;
 }