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authorJingoo Han <jg1.han@samsung.com>2013-07-03 15:05:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 16:07:43 -0700
commit8318fde4ac78f6793b1cbaf57659902253a61617 (patch)
tree7b7a30f1bdcd75972b8efba43fece1d48f19d611 /include/linux/backlight.h
parent9ed3936fd7e918bfea565f51aa4379967009d7dd (diff)
backlight: add devm_backlight_device_{register,unregister}()
These functions allow the driver core to automatically clean up any allocation made by backlight drivers. Thus it simplifies the error paths. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/backlight.h')
-rw-r--r--include/linux/backlight.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/backlight.h b/include/linux/backlight.h
index da9a0825e007..53b77949c79d 100644
--- a/include/linux/backlight.h
+++ b/include/linux/backlight.h
@@ -114,7 +114,13 @@ static inline void backlight_update_status(struct backlight_device *bd)
extern struct backlight_device *backlight_device_register(const char *name,
struct device *dev, void *devdata, const struct backlight_ops *ops,
const struct backlight_properties *props);
+extern struct backlight_device *devm_backlight_device_register(
+ struct device *dev, const char *name, struct device *parent,
+ void *devdata, const struct backlight_ops *ops,
+ const struct backlight_properties *props);
extern void backlight_device_unregister(struct backlight_device *bd);
+extern void devm_backlight_device_unregister(struct device *dev,
+ struct backlight_device *bd);
extern void backlight_force_update(struct backlight_device *bd,
enum backlight_update_reason reason);