drivers/video/backlight/lm3533_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: Johan Hovold <jhovold@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>

diff --git a/drivers/video/backlight/lm3533_bl.c b/drivers/video/backlight/lm3533_bl.c
index bebeb63607db214e7e679732d2277ac686a015fe..18dca0c29c6836456954a83e97b76fa24625db19 100644 (file)
--- a/drivers/video/backlight/lm3533_bl.c
+++ b/drivers/video/backlight/lm3533_bl.c
@@ -295,7 +295,7 @@ static int __devinit lm3533_bl_probe(struct platform_device *pdev)
                return -EINVAL;
        }
 
-       bl = kzalloc(sizeof(*bl), GFP_KERNEL);
+       bl = devm_kzalloc(&pdev->dev, sizeof(*bl), GFP_KERNEL);
        if (!bl) {
                dev_err(&pdev->dev,
                                "failed to allocate memory for backlight\n");
@@ -317,8 +317,7 @@ static int __devinit lm3533_bl_probe(struct platform_device *pdev)
                                                &lm3533_bl_ops, &props);
        if (IS_ERR(bd)) {
                dev_err(&pdev->dev, "failed to register backlight device\n");
-               ret = PTR_ERR(bd);
-               goto err_free;
+               return PTR_ERR(bd);
        }
 
        bl->bd = bd;
@@ -348,8 +347,6 @@ err_sysfs_remove:
        sysfs_remove_group(&bd->dev.kobj, &lm3533_bl_attribute_group);
 err_unregister:
        backlight_device_unregister(bd);
-err_free:
-       kfree(bl);
 
        return ret;
 }
@@ -367,7 +364,6 @@ static int __devexit lm3533_bl_remove(struct platform_device *pdev)
        lm3533_ctrlbank_disable(&bl->cb);
        sysfs_remove_group(&bd->dev.kobj, &lm3533_bl_attribute_group);
        backlight_device_unregister(bd);
-       kfree(bl);
 
        return 0;
 }