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authorJingoo Han <jg1.han@samsung.com>2012-05-30 02:07:24 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-30 03:22:31 +0400
commitd073adc5caf03a928a230baf2d8a86b1f9a03710 (patch)
treea6f0236ab2b2c9b052e87476977e10bee3a75464 /drivers
parent541f936f5d3993c5bbed33bdb53acd6de2403b04 (diff)
downloadlinux-d073adc5caf03a928a230baf2d8a86b1f9a03710.tar.xz
backlight: tdo24m: 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: Eric Miao <eric.y.miao@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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/video/backlight/tdo24m.c21
1 files changed, 6 insertions, 15 deletions
diff --git a/drivers/video/backlight/tdo24m.c b/drivers/video/backlight/tdo24m.c
index 2368b8e5f89e..02444d042cd5 100644
--- a/drivers/video/backlight/tdo24m.c
+++ b/drivers/video/backlight/tdo24m.c
@@ -349,7 +349,7 @@ static int __devinit tdo24m_probe(struct spi_device *spi)
if (err)
return err;
- lcd = kzalloc(sizeof(struct tdo24m), GFP_KERNEL);
+ lcd = devm_kzalloc(&spi->dev, sizeof(struct tdo24m), GFP_KERNEL);
if (!lcd)
return -ENOMEM;
@@ -357,11 +357,9 @@ static int __devinit tdo24m_probe(struct spi_device *spi)
lcd->power = FB_BLANK_POWERDOWN;
lcd->mode = MODE_VGA; /* default to VGA */
- lcd->buf = kmalloc(TDO24M_SPI_BUFF_SIZE, GFP_KERNEL);
- if (lcd->buf == NULL) {
- kfree(lcd);
+ lcd->buf = devm_kzalloc(&spi->dev, TDO24M_SPI_BUFF_SIZE, GFP_KERNEL);
+ if (lcd->buf == NULL)
return -ENOMEM;
- }
m = &lcd->msg;
x = &lcd->xfer;
@@ -383,15 +381,13 @@ static int __devinit tdo24m_probe(struct spi_device *spi)
break;
default:
dev_err(&spi->dev, "Unsupported model");
- goto out_free;
+ return -EINVAL;
}
lcd->lcd_dev = lcd_device_register("tdo24m", &spi->dev,
lcd, &tdo24m_ops);
- if (IS_ERR(lcd->lcd_dev)) {
- err = PTR_ERR(lcd->lcd_dev);
- goto out_free;
- }
+ if (IS_ERR(lcd->lcd_dev))
+ return PTR_ERR(lcd->lcd_dev);
dev_set_drvdata(&spi->dev, lcd);
err = tdo24m_power(lcd, FB_BLANK_UNBLANK);
@@ -402,9 +398,6 @@ static int __devinit tdo24m_probe(struct spi_device *spi)
out_unregister:
lcd_device_unregister(lcd->lcd_dev);
-out_free:
- kfree(lcd->buf);
- kfree(lcd);
return err;
}
@@ -414,8 +407,6 @@ static int __devexit tdo24m_remove(struct spi_device *spi)
tdo24m_power(lcd, FB_BLANK_POWERDOWN);
lcd_device_unregister(lcd->lcd_dev);
- kfree(lcd->buf);
- kfree(lcd);
return 0;
}