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 bebeb63..18dca0c 100644
--- a/drivers/video/backlight/lm3533_bl.c
+++ b/drivers/video/backlight/lm3533_bl.c
@@ -295,7 +295,7 @@
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 @@
&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 @@
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 @@
lm3533_ctrlbank_disable(&bl->cb);
sysfs_remove_group(&bd->dev.kobj, &lm3533_bl_attribute_group);
backlight_device_unregister(bd);
- kfree(bl);
return 0;
}