From: Jingoo Han <jg1.han@samsung.com>
To: "'Andrew Morton'" <akpm@linux-foundation.org>,
"'LKML'" <linux-kernel@vger.kernel.org>
Cc: "'Richard Purdie'" <rpurdie@rpsys.net>,
"'Dmitry Baryshkov'" <dbaryshkov@gmail.com>,
"'Jingoo Han'" <jg1.han@samsung.com>,
"'Axel Lin'" <axel.lin@gmail.com>
Subject: [PATCH 3/7] backlight: tosa_lcd: use devm_gpio_request()
Date: Wed, 13 Jun 2012 20:20:29 +0900 [thread overview]
Message-ID: <000401cd4956$89e2a700$9da7f500$%han@samsung.com> (raw)
The devm_ functions allocate memory that is released when a driver
detaches. This patch uses devm_gpio_request of these functions.
Cc: Dmitry Baryshkov <dbaryshkov@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
---
drivers/video/backlight/tosa_lcd.c | 7 ++-----
1 files changed, 2 insertions(+), 5 deletions(-)
diff --git a/drivers/video/backlight/tosa_lcd.c b/drivers/video/backlight/tosa_lcd.c
index 47823b8..33047a6 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;
--
1.7.1
reply other threads:[~2012-06-13 11:20 UTC|newest]
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