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linux-sg2042
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backlight: l4f00242t03: 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: Alberto Panizzo <alberto@amarulasolutions.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 2012-05-29 15:07:23 -07:00 committed by Linus Torvalds
parent 9828eb09bf
commit ba4a887ac3
1 changed files with 11 additions and 14 deletions
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25
drivers/video/backlight/l4f00242t03.c
View File

@ -161,7 +161,8 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
return -EINVAL;
}
priv = kzalloc(sizeof(struct l4f00242t03_priv), GFP_KERNEL);
priv = devm_kzalloc(&spi->dev, sizeof(struct l4f00242t03_priv),
GFP_KERNEL);
if (priv == NULL) {
dev_err(&spi->dev, "No memory for this device.\n");
@ -179,7 +180,7 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
if (ret) {
dev_err(&spi->dev,
"Unable to get the lcd l4f00242t03 reset gpio.\n");
goto err;
return ret;
}
ret = gpio_request_one(pdata->data_enable_gpio, GPIOF_OUT_INIT_LOW,
@ -187,7 +188,7 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
if (ret) {
dev_err(&spi->dev,
"Unable to get the lcd l4f00242t03 data en gpio.\n");
goto err2;
goto err;
}
priv->io_reg = regulator_get(&spi->dev, "vdd");
@ -195,7 +196,7 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
ret = PTR_ERR(priv->io_reg);
dev_err(&spi->dev, "%s: Unable to get the IO regulator\n",
__func__);
goto err3;
goto err2;
}
priv->core_reg = regulator_get(&spi->dev, "vcore");
@ -203,14 +204,14 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
ret = PTR_ERR(priv->core_reg);
dev_err(&spi->dev, "%s: Unable to get the core regulator\n",
__func__);
goto err4;
goto err3;
}
priv->ld = lcd_device_register("l4f00242t03",
&spi->dev, priv, &l4f_ops);
if (IS_ERR(priv->ld)) {
ret = PTR_ERR(priv->ld);
goto err5;
goto err4;
}
/* Init the LCD */
@ -222,16 +223,14 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
return 0;
err5:
regulator_put(priv->core_reg);
err4:
regulator_put(priv->io_reg);
regulator_put(priv->core_reg);
err3:
gpio_free(pdata->data_enable_gpio);
regulator_put(priv->io_reg);
err2:
gpio_free(pdata->reset_gpio);
gpio_free(pdata->data_enable_gpio);
err:
kfree(priv);
gpio_free(pdata->reset_gpio);
return ret;
}
@ -252,8 +251,6 @@ static int __devexit l4f00242t03_remove(struct spi_device *spi)
regulator_put(priv->io_reg);
regulator_put(priv->core_reg);
kfree(priv);
return 0;
}