From d073adc5caf03a928a230baf2d8a86b1f9a03710 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Tue, 29 May 2012 15:07:24 -0700 Subject: [PATCH] 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 Cc: Eric Miao Cc: Richard Purdie Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/backlight/tdo24m.c | 21 ++++++--------------- 1 file 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; } -- 2.20.1