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drivers/video/backlight/ot200_bl.c: use devm_ functions 

The devm_ functions allocate memory that is released when a driver
detaches. This patch uses devm_kzalloc of these functions

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Christian Gmeiner <christian.gmeiner@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jingoo Han 2012-07-30 14:40:33 -07:00 committed by Linus Torvalds
parent a4be29ac6d
commit f1b60d46b6
1 changed files with 4 additions and 8 deletions
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12
drivers/video/backlight/ot200_bl.c
View File

@ -97,10 +97,10 @@ static int ot200_backlight_probe(struct platform_device *pdev)
goto error_mfgpt_alloc;
}
data = kzalloc(sizeof(*data), GFP_KERNEL);
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
if (!data) {
retval = -ENOMEM;
goto error_kzalloc;
goto error_devm_kzalloc;
}
/* setup gpio */
@ -122,16 +122,14 @@ static int ot200_backlight_probe(struct platform_device *pdev)
if (IS_ERR(bl)) {
dev_err(&pdev->dev, "failed to register backlight\n");
retval = PTR_ERR(bl);
goto error_backlight_device_register;
goto error_devm_kzalloc;
}
platform_set_drvdata(pdev, bl);
return 0;
error_backlight_device_register:
kfree(data);
error_kzalloc:
error_devm_kzalloc:
cs5535_mfgpt_free_timer(pwm_timer);
error_mfgpt_alloc:
gpio_free(GPIO_DIMM);
@ -141,7 +139,6 @@ error_mfgpt_alloc:
static int ot200_backlight_remove(struct platform_device *pdev)
{
struct backlight_device *bl = platform_get_drvdata(pdev);
struct ot200_backlight_data *data = bl_get_data(bl);
backlight_device_unregister(bl);
@ -154,7 +151,6 @@ static int ot200_backlight_remove(struct platform_device *pdev)
cs5535_mfgpt_free_timer(pwm_timer);
gpio_free(GPIO_DIMM);
kfree(data);
return 0;
}