Re: [PATCH 02/12] backlight: gpio: use a helper variable for &pdev->dev

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On 25/06/2019 17:34, Bartosz Golaszewski wrote:
From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>

Instead of dereferencing pdev each time, use a helper variable for
the associated device pointer.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>

No objections but I think this will need to be respun against backlight-next (or v5.3).

---
  drivers/video/backlight/gpio_backlight.c | 14 +++++++-------
  1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/video/backlight/gpio_backlight.c b/drivers/video/backlight/gpio_backlight.c
index 654c19d3a81d..8adbc8d75097 100644
--- a/drivers/video/backlight/gpio_backlight.c
+++ b/drivers/video/backlight/gpio_backlight.c
@@ -83,15 +83,16 @@ static int gpio_backlight_probe(struct platform_device *pdev)
  	struct gpio_backlight_platform_data *pdata =
  		dev_get_platdata(&pdev->dev);

Why leave this one out?


Daniel.


  	struct backlight_properties props;
+	struct device *dev = &pdev->dev;
  	struct backlight_device *bl;
  	struct gpio_backlight *gbl;
  	int ret;
- gbl = devm_kzalloc(&pdev->dev, sizeof(*gbl), GFP_KERNEL);
+	gbl = devm_kzalloc(dev, sizeof(*gbl), GFP_KERNEL);
  	if (gbl == NULL)
  		return -ENOMEM;
- gbl->dev = &pdev->dev;
+	gbl->dev = dev;
if (pdata) {
  		/*
@@ -108,7 +109,7 @@ static int gpio_backlight_probe(struct platform_device *pdev)
  		ret = devm_gpio_request_one(gbl->dev, pdata->gpio, flags,
  					    pdata ? pdata->name : "backlight");
  		if (ret < 0) {
-			dev_err(&pdev->dev, "unable to request GPIO\n");
+			dev_err(dev, "unable to request GPIO\n");
  			return ret;
  		}
  		gbl->gpiod = gpio_to_desc(pdata->gpio);
@@ -123,11 +124,10 @@ static int gpio_backlight_probe(struct platform_device *pdev)
  	memset(&props, 0, sizeof(props));
  	props.type = BACKLIGHT_RAW;
  	props.max_brightness = 1;
-	bl = devm_backlight_device_register(&pdev->dev, dev_name(&pdev->dev),
-					&pdev->dev, gbl, &gpio_backlight_ops,
-					&props);
+	bl = devm_backlight_device_register(dev, dev_name(dev), dev, gbl,
+					    &gpio_backlight_ops, &props);
  	if (IS_ERR(bl)) {
-		dev_err(&pdev->dev, "failed to register backlight\n");
+		dev_err(dev, "failed to register backlight\n");
  		return PTR_ERR(bl);
  	}

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