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media: entity: Add a nop variant of media_entity_cleanup

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Add nop variant of media_entity_cleanup. This allows calling
media_entity_cleanup whether or not Media controller is enabled,
simplifying driver code.

Also drop #ifdefs on a few drivers around media_entity_cleanup().

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Sakari Ailus 2018-01-09 05:20:34 -05:00 committed by Mauro Carvalho Chehab
parent 6146fde355
commit 3580112b6d
7 changed files with 5 additions and 21 deletions
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2
drivers/media/i2c/mt9m111.c
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@ -1046,9 +1046,7 @@ static int mt9m111_remove(struct i2c_client *client)
struct mt9m111 *mt9m111 = to_mt9m111(client);
v4l2_async_unregister_subdev(&mt9m111->subdev);
#ifdef CONFIG_MEDIA_CONTROLLER
media_entity_cleanup(&mt9m111->subdev.entity);
#endif
v4l2_clk_put(mt9m111->clk);
v4l2_ctrl_handler_free(&mt9m111->hdl);

4
drivers/media/i2c/ov2640.c
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@ -1147,9 +1147,7 @@ static int ov2640_probe(struct i2c_client *client,
return 0;
err_videoprobe:
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&priv->subdev.entity);
#endif
err_hdl:
v4l2_ctrl_handler_free(&priv->hdl);
err_clk:
@ -1163,9 +1161,7 @@ static int ov2640_remove(struct i2c_client *client)
v4l2_async_unregister_subdev(&priv->subdev);
v4l2_ctrl_handler_free(&priv->hdl);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&priv->subdev.entity);
#endif
v4l2_device_unregister_subdev(&priv->subdev);
clk_disable_unprepare(priv->clk);
return 0;

4
drivers/media/i2c/ov2659.c
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@ -1474,9 +1474,7 @@ static int ov2659_probe(struct i2c_client *client,
error:
v4l2_ctrl_handler_free(&ov2659->ctrls);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
mutex_destroy(&ov2659->lock);
return ret;
}
@ -1488,9 +1486,7 @@ static int ov2659_remove(struct i2c_client *client)
v4l2_ctrl_handler_free(&ov2659->ctrls);
v4l2_async_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
mutex_destroy(&ov2659->lock);
return 0;

4
drivers/media/i2c/ov7670.c
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@ -1846,9 +1846,7 @@ static int ov7670_probe(struct i2c_client *client,
return 0;
entity_cleanup:
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&info->sd.entity);
#endif
hdl_free:
v4l2_ctrl_handler_free(&info->hdl);
power_off:
@ -1867,9 +1865,7 @@ static int ov7670_remove(struct i2c_client *client)
v4l2_async_unregister_subdev(sd);
v4l2_ctrl_handler_free(&info->hdl);
clk_disable_unprepare(info->clk);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&info->sd.entity);
#endif
ov7670_s_power(sd, 0);
return 0;
}

2
drivers/media/i2c/ov7740.c
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@ -1148,9 +1148,7 @@ static int ov7740_remove(struct i2c_client *client)
mutex_destroy(&ov7740->mutex);
v4l2_ctrl_handler_free(ov7740->subdev.ctrl_handler);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&ov7740->subdev.entity);
#endif
v4l2_async_unregister_subdev(sd);
ov7740_free_controls(ov7740);

4
drivers/media/i2c/tvp514x.c
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@ -1131,9 +1131,7 @@ tvp514x_probe(struct i2c_client *client, const struct i2c_device_id *id)
done:
if (ret < 0) {
v4l2_ctrl_handler_free(&decoder->hdl);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&decoder->sd.entity);
#endif
}
return ret;
}
@ -1151,9 +1149,7 @@ static int tvp514x_remove(struct i2c_client *client)
struct tvp514x_decoder *decoder = to_decoder(sd);
v4l2_async_unregister_subdev(&decoder->sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&decoder->sd.entity);
#endif
v4l2_ctrl_handler_free(&decoder->hdl);
return 0;
}

6
include/media/media-entity.h
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@ -634,7 +634,11 @@ int media_entity_pads_init(struct media_entity *entity, u16 num_pads,
* This function must be called during the cleanup phase after unregistering
* the entity (currently, it does nothing).
*/
static inline void media_entity_cleanup(struct media_entity *entity) {};
#if IS_ENABLED(CONFIG_MEDIA_CONTROLLER)
static inline void media_entity_cleanup(struct media_entity *entity) {}
#else
#define media_entity_cleanup(entity) do { } while (false)
#endif
/**
* media_create_pad_link() - creates a link between two entities.