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media: mc-device: remove unnecessary __must_check

Browse Source 
In the file mc-device.c, the function
media_device_register_entity_notify() does not need to have the
__must_check attribute since it returns only a value of 0.
Therefore, we can remove this attribute and change the function's
return type.

Signed-off-by: Jason Kim <sukbeom.kim@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Jason Kim 2023-03-28 12:14:59 +09:00 committed by Hans Verkuil
parent 2649c1a20e
commit a7687fec19
3 changed files with 5 additions and 12 deletions
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3
drivers/media/mc/mc-device.c
View File

@ -756,13 +756,12 @@ int __must_check __media_device_register(struct media_device *mdev,
}
EXPORT_SYMBOL_GPL(__media_device_register);
int __must_check media_device_register_entity_notify(struct media_device *mdev,
void media_device_register_entity_notify(struct media_device *mdev,
struct media_entity_notify *nptr)
{
mutex_lock(&mdev->graph_mutex);
list_add_tail(&nptr->list, &mdev->entity_notify);
mutex_unlock(&mdev->graph_mutex);
return 0;
}
EXPORT_SYMBOL_GPL(media_device_register_entity_notify);

9
drivers/media/usb/au0828/au0828-core.c
View File

@ -627,14 +627,9 @@ static int au0828_media_device_register(struct au0828_dev *dev,
/* register entity_notify callback */
dev->entity_notify.notify_data = (void *) dev;
dev->entity_notify.notify = (void *) au0828_media_graph_notify;
ret = media_device_register_entity_notify(dev->media_dev,
media_device_register_entity_notify(dev->media_dev,
&dev->entity_notify);
if (ret) {
dev_err(&udev->dev,
"Media Device register entity_notify Error: %d\n",
ret);
return ret;
}
/* set enable_source */
mutex_lock(&dev->media_dev->graph_mutex);
dev->media_dev->source_priv = (void *) dev;

5
include/media/media-device.h
View File

@ -364,7 +364,7 @@ void media_device_unregister_entity(struct media_entity *entity);
* media_entity_notify callbacks are invoked.
*/
int __must_check media_device_register_entity_notify(struct media_device *mdev,
void media_device_register_entity_notify(struct media_device *mdev,
struct media_entity_notify *nptr);
/**
@ -444,11 +444,10 @@ static inline int media_device_register_entity(struct media_device *mdev,
static inline void media_device_unregister_entity(struct media_entity *entity)
{
}
static inline int media_device_register_entity_notify(
static inline void media_device_register_entity_notify(
struct media_device *mdev,
struct media_entity_notify *nptr)
{
return 0;
}
static inline void media_device_unregister_entity_notify(
struct media_device *mdev,