[PATCH 4/8] backlight: ot200_bl: use devm_backlight_device_register()

[Jingoo Han]

Use devm_backlight_device_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@xxxxxxxxxxx>
---
 drivers/video/backlight/ot200_bl.c |    9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/video/backlight/ot200_bl.c b/drivers/video/backlight/ot200_bl.c
index fdbb6ee..f5a5202 100644
--- a/drivers/video/backlight/ot200_bl.c
+++ b/drivers/video/backlight/ot200_bl.c
@@ -118,8 +118,9 @@ static int ot200_backlight_probe(struct platform_device *pdev)
 	props.brightness = 100;
 	props.type = BACKLIGHT_RAW;
 
-	bl = backlight_device_register(dev_name(&pdev->dev), &pdev->dev, data,
-					&ot200_backlight_ops, &props);
+	bl = devm_backlight_device_register(&pdev->dev, dev_name(&pdev->dev),
+					&pdev->dev, data, &ot200_backlight_ops,
+					&props);
 	if (IS_ERR(bl)) {
 		dev_err(&pdev->dev, "failed to register backlight\n");
 		retval = PTR_ERR(bl);
@@ -137,10 +138,6 @@ error_devm_kzalloc:
 
 static int ot200_backlight_remove(struct platform_device *pdev)
 {
-	struct backlight_device *bl = platform_get_drvdata(pdev);
-
-	backlight_device_unregister(bl);
-
 	/* on module unload set brightness to 100% */
 	cs5535_mfgpt_write(pwm_timer, MFGPT_REG_COUNTER, 0);
 	cs5535_mfgpt_write(pwm_timer, MFGPT_REG_SETUP, MFGPT_SETUP_CNTEN);
-- 
1.7.10.4


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