linux-kernel - [PATCH 3/7] gpio: rdc321x: remove unnecessary platform_set

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Date:	Mon, 06 May 2013 12:29:18 +0900
From:	Jingoo Han <jg1.han@...sung.com>
To:	'Grant Likely' <grant.likely@...retlab.ca>
Cc:	'Linus Walleij' <linus.walleij@...aro.org>,
	linux-kernel@...r.kernel.org, Jingoo Han <jg1.han@...sung.com>
Subject: [PATCH 3/7] gpio: rdc321x: remove unnecessary platform_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@...sung.com>
---
 drivers/gpio/gpio-rdc321x.c |    7 ++-----
 1 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/gpio-rdc321x.c b/drivers/gpio/gpio-rdc321x.c
index 1bf55f6..368c3c0 100644
--- a/drivers/gpio/gpio-rdc321x.c
+++ b/drivers/gpio/gpio-rdc321x.c
@@ -187,20 +187,18 @@ static int rdc321x_gpio_probe(struct platform_device *pdev)
 					rdc321x_gpio_dev->reg1_data_base,
 					&rdc321x_gpio_dev->data_reg[0]);
 	if (err)
-		goto out_drvdata;
+		goto out_free;
 
 	err = pci_read_config_dword(rdc321x_gpio_dev->sb_pdev,
 					rdc321x_gpio_dev->reg2_data_base,
 					&rdc321x_gpio_dev->data_reg[1]);
 	if (err)
-		goto out_drvdata;
+		goto out_free;
 
 	dev_info(&pdev->dev, "registering %d GPIOs\n",
 					rdc321x_gpio_dev->chip.ngpio);
 	return gpiochip_add(&rdc321x_gpio_dev->chip);
 
-out_drvdata:
-	platform_set_drvdata(pdev, NULL);
 out_free:
 	kfree(rdc321x_gpio_dev);
 	return err;
@@ -216,7 +214,6 @@ static int rdc321x_gpio_remove(struct platform_device *pdev)
 		dev_err(&pdev->dev, "failed to unregister chip\n");
 
 	kfree(rdc321x_gpio_dev);
-	platform_set_drvdata(pdev, NULL);
 
 	return ret;
 }
-- 
1.7.2.5


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