drivers/video/backlight: use devm_ functions
The various devm_ functions allocate memory that is released when a driver
detaches. This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/backlight/aat2870_bl.c b/drivers/video/backlight/aat2870_bl.c
index 331f1ef..7ff7522 100644
--- a/drivers/video/backlight/aat2870_bl.c
+++ b/drivers/video/backlight/aat2870_bl.c
@@ -145,7 +145,9 @@
goto out;
}
- aat2870_bl = kzalloc(sizeof(struct aat2870_bl_driver_data), GFP_KERNEL);
+ aat2870_bl = devm_kzalloc(&pdev->dev,
+ sizeof(struct aat2870_bl_driver_data),
+ GFP_KERNEL);
if (!aat2870_bl) {
dev_err(&pdev->dev,
"Failed to allocate memory for aat2870 backlight\n");
@@ -162,7 +164,7 @@
dev_err(&pdev->dev,
"Failed allocate memory for backlight device\n");
ret = PTR_ERR(bd);
- goto out_kfree;
+ goto out;
}
aat2870_bl->pdev = pdev;
@@ -199,8 +201,6 @@
out_bl_dev_unregister:
backlight_device_unregister(bd);
-out_kfree:
- kfree(aat2870_bl);
out:
return ret;
}
@@ -215,7 +215,6 @@
backlight_update_status(bd);
backlight_device_unregister(bd);
- kfree(aat2870_bl);
return 0;
}