linux-kernel - [PATCH v3 3/3] backlight: mp3309c: Utilise temporary variable for struct device

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240208184313.2224579-4-andriy.shevchenko@linux.intel.com>
Date: Thu,  8 Feb 2024 20:42:28 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Daniel Thompson <daniel.thompson@...aro.org>,
	Flavio Suligoi <f.suligoi@...m.it>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	dri-devel@...ts.freedesktop.org,
	linux-fbdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Lee Jones <lee@...nel.org>,
	Jingoo Han <jingoohan1@...il.com>,
	Helge Deller <deller@....de>
Subject: [PATCH v3 3/3] backlight: mp3309c: Utilise temporary variable for struct device

We have a temporary variable to keep pointer to struct device.
Utilise it where it makes sense.

Reviewed-by: Daniel Thompson <daniel.thompson@...aro.org>
Tested-by: Flavio Suligoi <f.suligoi@...m.it>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/video/backlight/mp3309c.c | 30 ++++++++++++------------------
 1 file changed, 12 insertions(+), 18 deletions(-)

diff --git a/drivers/video/backlight/mp3309c.c b/drivers/video/backlight/mp3309c.c
index 426e9f2356ad..708c053d492c 100644
--- a/drivers/video/backlight/mp3309c.c
+++ b/drivers/video/backlight/mp3309c.c
@@ -222,10 +222,9 @@ static int mp3309c_parse_fwnode(struct mp3309c_chip *chip,
 	 */
 	pdata->dimming_mode = DIMMING_ANALOG_I2C;
 	if (device_property_present(dev, "pwms")) {
-		chip->pwmd = devm_pwm_get(chip->dev, NULL);
+		chip->pwmd = devm_pwm_get(dev, NULL);
 		if (IS_ERR(chip->pwmd))
-			return dev_err_probe(chip->dev, PTR_ERR(chip->pwmd),
-					     "error getting pwm data\n");
+			return dev_err_probe(dev, PTR_ERR(chip->pwmd), "error getting pwm data\n");
 		pdata->dimming_mode = DIMMING_PWM;
 		pwm_apply_args(chip->pwmd);
 	}
@@ -243,11 +242,9 @@ static int mp3309c_parse_fwnode(struct mp3309c_chip *chip,
 		num_levels = ANALOG_I2C_NUM_LEVELS;
 
 		/* Enable GPIO used in I2C dimming mode only */
-		chip->enable_gpio = devm_gpiod_get(chip->dev, "enable",
-						   GPIOD_OUT_HIGH);
+		chip->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);
 		if (IS_ERR(chip->enable_gpio))
-			return dev_err_probe(chip->dev,
-					     PTR_ERR(chip->enable_gpio),
+			return dev_err_probe(dev, PTR_ERR(chip->enable_gpio),
 					     "error getting enable gpio\n");
 	} else {
 		/*
@@ -265,8 +262,7 @@ static int mp3309c_parse_fwnode(struct mp3309c_chip *chip,
 	}
 
 	/* Fill brightness levels array */
-	pdata->levels = devm_kcalloc(chip->dev, num_levels,
-				     sizeof(*pdata->levels), GFP_KERNEL);
+	pdata->levels = devm_kcalloc(dev, num_levels, sizeof(*pdata->levels), GFP_KERNEL);
 	if (!pdata->levels)
 		return -ENOMEM;
 	if (device_property_present(dev, "brightness-levels")) {
@@ -336,21 +332,21 @@ static int mp3309c_probe(struct i2c_client *client)
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
 		return dev_err_probe(dev, -EOPNOTSUPP, "failed to check i2c functionality\n");
 
-	chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
+	chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
 	if (!chip)
 		return -ENOMEM;
 
-	chip->dev = &client->dev;
+	chip->dev = dev;
 
 	chip->regmap = devm_regmap_init_i2c(client, &mp3309c_regmap);
 	if (IS_ERR(chip->regmap))
-		return dev_err_probe(&client->dev, PTR_ERR(chip->regmap),
+		return dev_err_probe(dev, PTR_ERR(chip->regmap),
 				     "failed to allocate register map\n");
 
 	i2c_set_clientdata(client, chip);
 
 	if (!pdata) {
-		pdata = devm_kzalloc(chip->dev, sizeof(*pdata), GFP_KERNEL);
+		pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
 		if (!pdata)
 			return -ENOMEM;
 
@@ -367,11 +363,10 @@ static int mp3309c_probe(struct i2c_client *client)
 	props.type = BACKLIGHT_RAW;
 	props.power = FB_BLANK_UNBLANK;
 	props.fb_blank = FB_BLANK_UNBLANK;
-	chip->bl = devm_backlight_device_register(chip->dev, "mp3309c",
-						  chip->dev, chip,
+	chip->bl = devm_backlight_device_register(dev, "mp3309c", dev, chip,
 						  &mp3309c_bl_ops, &props);
 	if (IS_ERR(chip->bl))
-		return dev_err_probe(chip->dev, PTR_ERR(chip->bl),
+		return dev_err_probe(dev, PTR_ERR(chip->bl),
 				     "error registering backlight device\n");
 
 	/* In PWM dimming mode, enable pwm device */
@@ -383,8 +378,7 @@ static int mp3309c_probe(struct i2c_client *client)
 		pwmstate.enabled = true;
 		ret = pwm_apply_might_sleep(chip->pwmd, &pwmstate);
 		if (ret)
-			return dev_err_probe(chip->dev, ret,
-					     "error setting pwm device\n");
+			return dev_err_probe(dev, ret, "error setting pwm device\n");
 	}
 
 	chip->pdata->status = FIRST_POWER_ON;
-- 
2.43.0.rc1.1.gbec44491f096