backlight: tosa_lcd: use devm_gpio_request()

The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_gpio_request() for these functions.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Dmitry Baryshkov <dbaryshkov@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>

1 files changed, 2 insertions, 5 deletions

diff --git a/drivers/video/backlight/tosa_lcd.c b/drivers/video/backlight/tosa_lcd.c
index 47823b8efff..33047a66cc2 100644
--- a/drivers/video/backlight/tosa_lcd.c
+++ b/drivers/video/backlight/tosa_lcd.c
@@ -193,7 +193,7 @@ static int __devinit tosa_lcd_probe(struct spi_device *spi)
         data->spi = spi;
         dev_set_drvdata(&spi->dev, data);
 
-        ret = gpio_request(TOSA_GPIO_TG_ON, "tg #pwr");
+        ret = devm_gpio_request(&spi->dev, TOSA_GPIO_TG_ON, "tg #pwr");
         if (ret < 0)
                 goto err_gpio_tg;
 
@@ -201,7 +201,7 @@ static int __devinit tosa_lcd_probe(struct spi_device *spi)
 
         ret = gpio_direction_output(TOSA_GPIO_TG_ON, 0);
         if (ret < 0)
-                goto err_gpio_dir;
+                goto err_gpio_tg;
 
         mdelay(60);
         tosa_lcd_tg_init(data);
@@ -221,8 +221,6 @@ static int __devinit tosa_lcd_probe(struct spi_device *spi)
 
 err_register:
         tosa_lcd_tg_off(data);
-err_gpio_dir:
-        gpio_free(TOSA_GPIO_TG_ON);
 err_gpio_tg:
         dev_set_drvdata(&spi->dev, NULL);
         return ret;
@@ -239,7 +237,6 @@ static int __devexit tosa_lcd_remove(struct spi_device *spi)
 
         tosa_lcd_tg_off(data);
 
-        gpio_free(TOSA_GPIO_TG_ON);
         dev_set_drvdata(&spi->dev, NULL);
 
         return 0;