linux-kernel - [PATCH 19/22] watchdog: intel-mid_wdt: Use 'dev' instead of dereferencing it repeatedly

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Message-Id: <1554752326-13319-20-git-send-email-linux@roeck-us.net>
Date:   Mon,  8 Apr 2019 12:38:43 -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 19/22] watchdog: intel-mid_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/intel-mid_wdt.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/watchdog/intel-mid_wdt.c b/drivers/watchdog/intel-mid_wdt.c
index 72c108a12c19..6cf7cc1ff615 100644
--- a/drivers/watchdog/intel-mid_wdt.c
+++ b/drivers/watchdog/intel-mid_wdt.c
@@ -110,12 +110,13 @@ static const struct watchdog_ops mid_wdt_ops = {
 
 static int mid_wdt_probe(struct platform_device *pdev)
 {
+	struct device *dev = &pdev->dev;
 	struct watchdog_device *wdt_dev;
-	struct intel_mid_wdt_pdata *pdata = pdev->dev.platform_data;
+	struct intel_mid_wdt_pdata *pdata = dev->platform_data;
 	int ret;
 
 	if (!pdata) {
-		dev_err(&pdev->dev, "missing platform data\n");
+		dev_err(dev, "missing platform data\n");
 		return -EINVAL;
 	}
 
@@ -125,7 +126,7 @@ static int mid_wdt_probe(struct platform_device *pdev)
 			return ret;
 	}
 
-	wdt_dev = devm_kzalloc(&pdev->dev, sizeof(*wdt_dev), GFP_KERNEL);
+	wdt_dev = devm_kzalloc(dev, sizeof(*wdt_dev), GFP_KERNEL);
 	if (!wdt_dev)
 		return -ENOMEM;
 
@@ -134,16 +135,15 @@ static int mid_wdt_probe(struct platform_device *pdev)
 	wdt_dev->min_timeout = MID_WDT_TIMEOUT_MIN;
 	wdt_dev->max_timeout = MID_WDT_TIMEOUT_MAX;
 	wdt_dev->timeout = MID_WDT_DEFAULT_TIMEOUT;
-	wdt_dev->parent = &pdev->dev;
+	wdt_dev->parent = dev;
 
-	watchdog_set_drvdata(wdt_dev, &pdev->dev);
+	watchdog_set_drvdata(wdt_dev, dev);
 
-	ret = devm_request_irq(&pdev->dev, pdata->irq, mid_wdt_irq,
+	ret = devm_request_irq(dev, pdata->irq, mid_wdt_irq,
 			       IRQF_SHARED | IRQF_NO_SUSPEND, "watchdog",
 			       wdt_dev);
 	if (ret) {
-		dev_err(&pdev->dev, "error requesting warning irq %d\n",
-			pdata->irq);
+		dev_err(dev, "error requesting warning irq %d\n", pdata->irq);
 		return ret;
 	}
 
@@ -163,13 +163,13 @@ static int mid_wdt_probe(struct platform_device *pdev)
 	/* Make sure the watchdog is serviced */
 	set_bit(WDOG_HW_RUNNING, &wdt_dev->status);
 
-	ret = devm_watchdog_register_device(&pdev->dev, wdt_dev);
+	ret = devm_watchdog_register_device(dev, wdt_dev);
 	if (ret) {
-		dev_err(&pdev->dev, "error registering watchdog device\n");
+		dev_err(dev, "error registering watchdog device\n");
 		return ret;
 	}
 
-	dev_info(&pdev->dev, "Intel MID watchdog device probed\n");
+	dev_info(dev, "Intel MID watchdog device probed\n");
 
 	return 0;
 }
-- 
2.7.4