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backlight: convert platform_lcd to devm_kzalloc() 

Saves some error handling code and eliminates a class of leaks.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mark Brown 2012-01-10 15:09:21 -08:00 committed by Linus Torvalds
parent 66655760bf
commit 48e78e8cc8
1 changed files with 4 additions and 5 deletions
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9
drivers/video/backlight/platform_lcd.c
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@ -85,7 +85,8 @@ static int __devinit platform_lcd_probe(struct platform_device *pdev)
return -EINVAL;
}
plcd = kzalloc(sizeof(struct platform_lcd), GFP_KERNEL);
plcd = devm_kzalloc(&pdev->dev, sizeof(struct platform_lcd),
GFP_KERNEL);
if (!plcd) {
dev_err(dev, "no memory for state\n");
return -ENOMEM;
@ -98,7 +99,7 @@ static int __devinit platform_lcd_probe(struct platform_device *pdev)
if (IS_ERR(plcd->lcd)) {
dev_err(dev, "cannot register lcd device\n");
err = PTR_ERR(plcd->lcd);
goto err_mem;
goto err;
}
platform_set_drvdata(pdev, plcd);
@ -106,8 +107,7 @@ static int __devinit platform_lcd_probe(struct platform_device *pdev)
return 0;
err_mem:
kfree(plcd);
err:
return err;
}
@ -116,7 +116,6 @@ static int __devexit platform_lcd_remove(struct platform_device *pdev)
struct platform_lcd *plcd = platform_get_drvdata(pdev);
lcd_device_unregister(plcd->lcd);
kfree(plcd);
return 0;
}