drivers/video/backlight/atmel-pwm-bl.c: 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>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
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, 3 deletions

diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c
index 0443a4f7185..cd64073d3f5 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -127,7 +127,8 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev)
         struct atmel_pwm_bl *pwmbl;
         int retval;
 
-        pwmbl = kzalloc(sizeof(struct atmel_pwm_bl), GFP_KERNEL);
+        pwmbl = devm_kzalloc(&pdev->dev, sizeof(struct atmel_pwm_bl),
+                                GFP_KERNEL);
         if (!pwmbl)
                 return -ENOMEM;
 
@@ -202,7 +203,6 @@ err_free_gpio:
 err_free_pwm:
         pwm_channel_free(&pwmbl->pwmc);
 err_free_mem:
-        kfree(pwmbl);
         return retval;
 }
 
@@ -218,7 +218,6 @@ static int __exit atmel_pwm_bl_remove(struct platform_device *pdev)
         pwm_channel_free(&pwmbl->pwmc);
         backlight_device_unregister(pwmbl->bldev);
         platform_set_drvdata(pdev, NULL);
-        kfree(pwmbl);
 
         return 0;
 }