[media] media framework: rename pads init function to media_entity_pads_init()

With the MC next gen rework, what's left for media_entity_init()
is to just initialize the PADs. However, certain devices, like
a FLASH led/light doesn't have any input or output PAD.

So, there's no reason why calling media_entity_init() would be
mandatory. Also, despite its name, what this function actually
does is to initialize the PADs data. So, rename it to
media_entity_pads_init() in order to reflect that.

The media entity actual init happens during entity register,
at media_device_register_entity(). We should move init of
num_links and num_backlinks to it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

54 files changed, 70 insertions, 71 deletions

diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
index 1d4e356..b56e008 100644
--- a/drivers/media/dvb-core/dvbdev.c
+++ b/drivers/media/dvb-core/dvbdev.c
@@ -245,7 +245,7 @@ static int dvb_create_tsout_entity(struct dvb_device *dvbdev,
 		entity->function = MEDIA_ENT_F_IO_DTV;
 		pads->flags = MEDIA_PAD_FL_SINK;
 
-		ret = media_entity_init(entity, 1, pads);
+		ret = media_entity_pads_init(entity, 1, pads);
 		if (ret < 0)
 			return ret;
 
@@ -340,7 +340,7 @@ static int dvb_create_media_entity(struct dvb_device *dvbdev,
 	}
 
 	if (npads) {
-		ret = media_entity_init(dvbdev->entity, npads, dvbdev->pads);
+		ret = media_entity_pads_init(dvbdev->entity, npads, dvbdev->pads);
 		if (ret)
 			return ret;
 	}
diff --git a/drivers/media/dvb-frontends/au8522_decoder.c b/drivers/media/dvb-frontends/au8522_decoder.c
index 464a2be..73612c5 100644
--- a/drivers/media/dvb-frontends/au8522_decoder.c
+++ b/drivers/media/dvb-frontends/au8522_decoder.c
@@ -768,7 +768,7 @@ static int au8522_probe(struct i2c_client *client,
 	state->pads[AU8522_PAD_VBI_OUT].flags = MEDIA_PAD_FL_SOURCE;
 	sd->entity.function = MEDIA_ENT_F_ATV_DECODER;
 
-	ret = media_entity_init(&sd->entity, ARRAY_SIZE(state->pads),
+	ret = media_entity_pads_init(&sd->entity, ARRAY_SIZE(state->pads),
 				state->pads);
 	if (ret < 0) {
 		v4l_info(client, "failed to initialize media entity!\n");
diff --git a/drivers/media/i2c/ad9389b.c b/drivers/media/i2c/ad9389b.c
index a02dc49..788967d 100644
--- a/drivers/media/i2c/ad9389b.c
+++ b/drivers/media/i2c/ad9389b.c
@@ -1158,7 +1158,7 @@ static int ad9389b_probe(struct i2c_client *client, const struct i2c_device_id *
 	state->rgb_quantization_range_ctrl->is_private = true;
 
 	state->pad.flags = MEDIA_PAD_FL_SINK;
-	err = media_entity_init(&sd->entity, 1, &state->pad);
+	err = media_entity_pads_init(&sd->entity, 1, &state->pad);
 	if (err)
 		goto err_hdl;
 
diff --git a/drivers/media/i2c/adp1653.c b/drivers/media/i2c/adp1653.c
index 7150f35..7e9cbf7 100644
--- a/drivers/media/i2c/adp1653.c
+++ b/drivers/media/i2c/adp1653.c
@@ -512,7 +512,7 @@ static int adp1653_probe(struct i2c_client *client,
 	if (ret)
 		goto free_and_quit;
 
-	ret = media_entity_init(&flash->subdev.entity, 0, NULL);
+	ret = media_entity_pads_init(&flash->subdev.entity, 0, NULL);
 	if (ret < 0)
 		goto free_and_quit;
 
diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c
index 2ebe9ef..ff57c1d 100644
--- a/drivers/media/i2c/adv7180.c
+++ b/drivers/media/i2c/adv7180.c
@@ -1214,7 +1214,7 @@ static int adv7180_probe(struct i2c_client *client,
 
 	state->pad.flags = MEDIA_PAD_FL_SOURCE;
 	sd->entity.flags |= MEDIA_ENT_F_ATV_DECODER;
-	ret = media_entity_init(&sd->entity, 1, &state->pad);
+	ret = media_entity_pads_init(&sd->entity, 1, &state->pad);
 	if (ret)
 		goto err_free_ctrl;
 
diff --git a/drivers/media/i2c/adv7511.c b/drivers/media/i2c/adv7511.c
index cbcf81b..471fd23 100644
--- a/drivers/media/i2c/adv7511.c
+++ b/drivers/media/i2c/adv7511.c
@@ -1482,7 +1482,7 @@ static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id *
 	state->rgb_quantization_range_ctrl->is_private = true;
 
 	state->pad.flags = MEDIA_PAD_FL_SINK;
-	err = media_entity_init(&sd->entity, 1, &state->pad);
+	err = media_entity_pads_init(&sd->entity, 1, &state->pad);
 	if (err)
 		goto err_hdl;
 
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
index c2df7e8..f8dd750 100644
--- a/drivers/media/i2c/adv7604.c
+++ b/drivers/media/i2c/adv7604.c
@@ -3208,7 +3208,7 @@ static int adv76xx_probe(struct i2c_client *client,
 		state->pads[i].flags = MEDIA_PAD_FL_SINK;
 	state->pads[state->source_pad].flags = MEDIA_PAD_FL_SOURCE;
 
-	err = media_entity_init(&sd->entity, state->source_pad + 1,
+	err = media_entity_pads_init(&sd->entity, state->source_pad + 1,
 				state->pads);
 	if (err)
 		goto err_work_queues;
diff --git a/drivers/media/i2c/adv7842.c b/drivers/media/i2c/adv7842.c
index b5013a9..5fbb788 100644
--- a/drivers/media/i2c/adv7842.c
+++ b/drivers/media/i2c/adv7842.c
@@ -3309,7 +3309,7 @@ static int adv7842_probe(struct i2c_client *client,
 			adv7842_delayed_work_enable_hotplug);
 
 	state->pad.flags = MEDIA_PAD_FL_SOURCE;
-	err = media_entity_init(&sd->entity, 1, &state->pad);
+	err = media_entity_pads_init(&sd->entity, 1, &state->pad);
 	if (err)
 		goto err_work_queues;
 
diff --git a/drivers/media/i2c/as3645a.c b/drivers/media/i2c/as3645a.c
index b1bc4d0..2e90e40 100644
--- a/drivers/media/i2c/as3645a.c
+++ b/drivers/media/i2c/as3645a.c
@@ -827,7 +827,7 @@ static int as3645a_probe(struct i2c_client *client,
 	if (ret < 0)
 		goto done;
 
-	ret = media_entity_init(&flash->subdev.entity, 0, NULL);
+	ret = media_entity_pads_init(&flash->subdev.entity, 0, NULL);
 	if (ret < 0)
 		goto done;
 
diff --git a/drivers/media/i2c/cx25840/cx25840-core.c b/drivers/media/i2c/cx25840/cx25840-core.c
index 4d975aa..07a3e71 100644
--- a/drivers/media/i2c/cx25840/cx25840-core.c
+++ b/drivers/media/i2c/cx25840/cx25840-core.c
@@ -5213,7 +5213,7 @@ static int cx25840_probe(struct i2c_client *client,
 	state->pads[CX25840_PAD_VBI_OUT].flags = MEDIA_PAD_FL_SOURCE;
 	sd->entity.function = MEDIA_ENT_F_ATV_DECODER;
 
-	ret = media_entity_init(&sd->entity, ARRAY_SIZE(state->pads),
+	ret = media_entity_pads_init(&sd->entity, ARRAY_SIZE(state->pads),
 				state->pads);
 	if (ret < 0) {
 		v4l_info(client, "failed to initialize media entity!\n");
diff --git a/drivers/media/i2c/lm3560.c b/drivers/media/i2c/lm3560.c
index 98266f7..251a2aa 100644
--- a/drivers/media/i2c/lm3560.c
+++ b/drivers/media/i2c/lm3560.c
@@ -365,7 +365,7 @@ static int lm3560_subdev_init(struct lm3560_flash *flash,
 	rval = lm3560_init_controls(flash, led_no);
 	if (rval)
 		goto err_out;
-	rval = media_entity_init(&flash->subdev_led[led_no].entity, 0, NULL);
+	rval = media_entity_pads_init(&flash->subdev_led[led_no].entity, 0, NULL);
 	if (rval < 0)
 		goto err_out;
 	flash->subdev_led[led_no].entity.function = MEDIA_ENT_F_FLASH;
diff --git a/drivers/media/i2c/lm3646.c b/drivers/media/i2c/lm3646.c
index ba5ee0d..7e9967a 100644
--- a/drivers/media/i2c/lm3646.c
+++ b/drivers/media/i2c/lm3646.c
@@ -282,7 +282,7 @@ static int lm3646_subdev_init(struct lm3646_flash *flash)
 	rval = lm3646_init_controls(flash);
 	if (rval)
 		goto err_out;
-	rval = media_entity_init(&flash->subdev_led.entity, 0, NULL);
+	rval = media_entity_pads_init(&flash->subdev_led.entity, 0, NULL);
 	if (rval < 0)
 		goto err_out;
 	flash->subdev_led.entity.function = MEDIA_ENT_F_FLASH;
diff --git a/drivers/media/i2c/m5mols/m5mols_core.c b/drivers/media/i2c/m5mols/m5mols_core.c
index bec5cea..acb804b 100644
--- a/drivers/media/i2c/m5mols/m5mols_core.c
+++ b/drivers/media/i2c/m5mols/m5mols_core.c
@@ -975,7 +975,7 @@ static int m5mols_probe(struct i2c_client *client,
 
 	sd->internal_ops = &m5mols_subdev_internal_ops;
 	info->pad.flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&sd->entity, 1, &info->pad);
+	ret = media_entity_pads_init(&sd->entity, 1, &info->pad);
 	if (ret < 0)
 		return ret;
 	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
diff --git a/drivers/media/i2c/mt9m032.c b/drivers/media/i2c/mt9m032.c
index a2a4508..da07679 100644
--- a/drivers/media/i2c/mt9m032.c
+++ b/drivers/media/i2c/mt9m032.c
@@ -799,7 +799,7 @@ static int mt9m032_probe(struct i2c_client *client,
 
 	sensor->subdev.ctrl_handler = &sensor->ctrls;
 	sensor->pad.flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&sensor->subdev.entity, 1, &sensor->pad);
+	ret = media_entity_pads_init(&sensor->subdev.entity, 1, &sensor->pad);
 	if (ret < 0)
 		goto error_ctrl;
 
diff --git a/drivers/media/i2c/mt9p031.c b/drivers/media/i2c/mt9p031.c
index 165f29c..237737f 100644
--- a/drivers/media/i2c/mt9p031.c
+++ b/drivers/media/i2c/mt9p031.c
@@ -1112,7 +1112,7 @@ static int mt9p031_probe(struct i2c_client *client,
 	mt9p031->subdev.internal_ops = &mt9p031_subdev_internal_ops;
 
 	mt9p031->pad.flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&mt9p031->subdev.entity, 1, &mt9p031->pad);
+	ret = media_entity_pads_init(&mt9p031->subdev.entity, 1, &mt9p031->pad);
 	if (ret < 0)
 		goto done;
 
diff --git a/drivers/media/i2c/mt9t001.c b/drivers/media/i2c/mt9t001.c
index 7d3df84..702d562 100644
--- a/drivers/media/i2c/mt9t001.c
+++ b/drivers/media/i2c/mt9t001.c
@@ -933,7 +933,7 @@ static int mt9t001_probe(struct i2c_client *client,
 	mt9t001->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 
 	mt9t001->pad.flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&mt9t001->subdev.entity, 1, &mt9t001->pad);
+	ret = media_entity_pads_init(&mt9t001->subdev.entity, 1, &mt9t001->pad);
 
 done:
 	if (ret < 0) {
diff --git a/drivers/media/i2c/mt9v032.c b/drivers/media/i2c/mt9v032.c
index b4f0f04..2e1d116 100644
--- a/drivers/media/i2c/mt9v032.c
+++ b/drivers/media/i2c/mt9v032.c
@@ -1046,7 +1046,7 @@ static int mt9v032_probe(struct i2c_client *client,
 	mt9v032->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 
 	mt9v032->pad.flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&mt9v032->subdev.entity, 1, &mt9v032->pad);
+	ret = media_entity_pads_init(&mt9v032->subdev.entity, 1, &mt9v032->pad);
 	if (ret < 0)
 		goto err;
 
diff --git a/drivers/media/i2c/noon010pc30.c b/drivers/media/i2c/noon010pc30.c
index 47ea3f7..30cb90b 100644
--- a/drivers/media/i2c/noon010pc30.c
+++ b/drivers/media/i2c/noon010pc30.c
@@ -780,7 +780,7 @@ static int noon010_probe(struct i2c_client *client,
 
 	info->pad.flags = MEDIA_PAD_FL_SOURCE;
 	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
-	ret = media_entity_init(&sd->entity, 1, &info->pad);
+	ret = media_entity_pads_init(&sd->entity, 1, &info->pad);
 	if (ret < 0)
 		goto np_err;
 
diff --git a/drivers/media/i2c/ov2659.c b/drivers/media/i2c/ov2659.c
index cf8e716..02b9a34 100644
--- a/drivers/media/i2c/ov2659.c
+++ b/drivers/media/i2c/ov2659.c
@@ -1446,7 +1446,7 @@ static int ov2659_probe(struct i2c_client *client,
 #if defined(CONFIG_MEDIA_CONTROLLER)
 	ov2659->pad.flags = MEDIA_PAD_FL_SOURCE;
 	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
-	ret = media_entity_init(&sd->entity, 1, &ov2659->pad);
+	ret = media_entity_pads_init(&sd->entity, 1, &ov2659->pad);
 	if (ret < 0) {
 		v4l2_ctrl_handler_free(&ov2659->ctrls);
 		return ret;
diff --git a/drivers/media/i2c/ov9650.c b/drivers/media/i2c/ov9650.c
index adb4aab..a0b3c9b 100644
--- a/drivers/media/i2c/ov9650.c
+++ b/drivers/media/i2c/ov9650.c
@@ -1501,7 +1501,7 @@ static int ov965x_probe(struct i2c_client *client,
 
 	ov965x->pad.flags = MEDIA_PAD_FL_SOURCE;
 	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
-	ret = media_entity_init(&sd->entity, 1, &ov965x->pad);
+	ret = media_entity_pads_init(&sd->entity, 1, &ov965x->pad);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/media/i2c/s5c73m3/s5c73m3-core.c b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
index 3d578f2..57b3d27 100644
--- a/drivers/media/i2c/s5c73m3/s5c73m3-core.c
+++ b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
@@ -1690,7 +1690,7 @@ static int s5c73m3_probe(struct i2c_client *client,
 	state->sensor_pads[S5C73M3_ISP_PAD].flags = MEDIA_PAD_FL_SOURCE;
 	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
 
-	ret = media_entity_init(&sd->entity, S5C73M3_NUM_PADS,
+	ret = media_entity_pads_init(&sd->entity, S5C73M3_NUM_PADS,
 							state->sensor_pads);
 	if (ret < 0)
 		return ret;
@@ -1706,7 +1706,7 @@ static int s5c73m3_probe(struct i2c_client *client,
 	state->oif_pads[OIF_SOURCE_PAD].flags = MEDIA_PAD_FL_SOURCE;
 	oif_sd->entity.function = MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN;
 
-	ret = media_entity_init(&oif_sd->entity, OIF_NUM_PADS,
+	ret = media_entity_pads_init(&oif_sd->entity, OIF_NUM_PADS,
 							state->oif_pads);
 	if (ret < 0)
 		return ret;
diff --git a/drivers/media/i2c/s5k4ecgx.c b/drivers/media/i2c/s5k4ecgx.c
index bacec84..8a0f22d 100644
--- a/drivers/media/i2c/s5k4ecgx.c
+++ b/drivers/media/i2c/s5k4ecgx.c
@@ -962,7 +962,7 @@ static int s5k4ecgx_probe(struct i2c_client *client,
 
 	priv->pad.flags = MEDIA_PAD_FL_SOURCE;
 	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
-	ret = media_entity_init(&sd->entity, 1, &priv->pad);
+	ret = media_entity_pads_init(&sd->entity, 1, &priv->pad);
 	if (ret)
 		return ret;
 
diff --git a/drivers/media/i2c/s5k5baf.c b/drivers/media/i2c/s5k5baf.c
index 564938a..fc3a5a8 100644
--- a/drivers/media/i2c/s5k5baf.c
+++ b/drivers/media/i2c/s5k5baf.c
@@ -1905,7 +1905,7 @@ static int s5k5baf_configure_subdevs(struct s5k5baf *state,
 
 	state->cis_pad.flags = MEDIA_PAD_FL_SOURCE;
 	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
-	ret = media_entity_init(&sd->entity, NUM_CIS_PADS, &state->cis_pad);
+	ret = media_entity_pads_init(&sd->entity, NUM_CIS_PADS, &state->cis_pad);
 	if (ret < 0)
 		goto err;
 
@@ -1920,7 +1920,7 @@ static int s5k5baf_configure_subdevs(struct s5k5baf *state,
 	state->pads[PAD_CIS].flags = MEDIA_PAD_FL_SINK;
 	state->pads[PAD_OUT].flags = MEDIA_PAD_FL_SOURCE;
 	sd->entity.function = MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN;
-	ret = media_entity_init(&sd->entity, NUM_ISP_PADS, state->pads);
+	ret = media_entity_pads_init(&sd->entity, NUM_ISP_PADS, state->pads);
 
 	if (!ret)
 		return 0;
diff --git a/drivers/media/i2c/s5k6a3.c b/drivers/media/i2c/s5k6a3.c
index 2434a79..b9e43ff 100644
--- a/drivers/media/i2c/s5k6a3.c
+++ b/drivers/media/i2c/s5k6a3.c
@@ -333,7 +333,7 @@ static int s5k6a3_probe(struct i2c_client *client,
 	sensor->format.height = S5K6A3_DEFAULT_HEIGHT;
 
 	sensor->pad.flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&sd->entity, 1, &sensor->pad);
+	ret = media_entity_pads_init(&sd->entity, 1, &sensor->pad);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/media/i2c/s5k6aa.c b/drivers/media/i2c/s5k6aa.c
index d71d104..faee113 100644
--- a/drivers/media/i2c/s5k6aa.c
+++ b/drivers/media/i2c/s5k6aa.c
@@ -1578,7 +1578,7 @@ static int s5k6aa_probe(struct i2c_client *client,
 
 	s5k6aa->pad.flags = MEDIA_PAD_FL_SOURCE;
 	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
-	ret = media_entity_init(&sd->entity, 1, &s5k6aa->pad);
+	ret = media_entity_pads_init(&sd->entity, 1, &s5k6aa->pad);
 	if (ret)
 		return ret;
 
diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c
index 3eaa69e..a215efe 100644
--- a/drivers/media/i2c/smiapp/smiapp-core.c
+++ b/drivers/media/i2c/smiapp/smiapp-core.c
@@ -2487,11 +2487,11 @@ static int smiapp_register_subdevs(struct smiapp_sensor *sensor)
 		if (!last)
 			continue;
 
-		rval = media_entity_init(&this->sd.entity,
+		rval = media_entity_pads_init(&this->sd.entity,
 					 this->npads, this->pads);
 		if (rval) {
 			dev_err(&client->dev,
-				"media_entity_init failed\n");
+				"media_entity_pads_init failed\n");
 			return rval;
 		}
 
@@ -3077,7 +3077,7 @@ static int smiapp_probe(struct i2c_client *client,
 	sensor->src->sensor = sensor;
 
 	sensor->src->pads[0].flags = MEDIA_PAD_FL_SOURCE;
-	rval = media_entity_init(&sensor->src->sd.entity, 2,
+	rval = media_entity_pads_init(&sensor->src->sd.entity, 2,
 				 sensor->src->pads);
 	if (rval < 0)
 		return rval;
diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c
index 78e5b64..3397eb9 100644
--- a/drivers/media/i2c/tc358743.c
+++ b/drivers/media/i2c/tc358743.c
@@ -1889,7 +1889,7 @@ static int tc358743_probe(struct i2c_client *client,
 	}
 
 	state->pad.flags = MEDIA_PAD_FL_SOURCE;
-	err = media_entity_init(&sd->entity, 1, &state->pad);
+	err = media_entity_pads_init(&sd->entity, 1, &state->pad);
 	if (err < 0)
 		goto err_hdl;
 
diff --git a/drivers/media/i2c/tvp514x.c b/drivers/media/i2c/tvp514x.c
index 455dd4e..7fa5f1e 100644
--- a/drivers/media/i2c/tvp514x.c
+++ b/drivers/media/i2c/tvp514x.c
@@ -1097,7 +1097,7 @@ tvp514x_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	decoder->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 	decoder->sd.entity.flags |= MEDIA_ENT_F_ATV_DECODER;
 
-	ret = media_entity_init(&decoder->sd.entity, 1, &decoder->pad);
+	ret = media_entity_pads_init(&decoder->sd.entity, 1, &decoder->pad);
 	if (ret < 0) {
 		v4l2_err(sd, "%s decoder driver failed to register !!\n",
 			 sd->name);
diff --git a/drivers/media/i2c/tvp7002.c b/drivers/media/i2c/tvp7002.c
index 216a079..83c79fa 100644
--- a/drivers/media/i2c/tvp7002.c
+++ b/drivers/media/i2c/tvp7002.c
@@ -1014,7 +1014,7 @@ static int tvp7002_probe(struct i2c_client *c, const struct i2c_device_id *id)
 	device->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 	device->sd.entity.flags |= MEDIA_ENT_F_ATV_DECODER;
 
-	error = media_entity_init(&device->sd.entity, 1, &device->pad);
+	error = media_entity_pads_init(&device->sd.entity, 1, &device->pad);
 	if (error < 0)
 		return error;
 #endif
diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c
index 14bd568..b8cd773 100644
--- a/drivers/media/media-device.c
+++ b/drivers/media/media-device.c
@@ -623,6 +623,8 @@ int __must_check media_device_register_entity(struct media_device *mdev,
 	WARN_ON(entity->graph_obj.mdev != NULL);
 	entity->graph_obj.mdev = mdev;
 	INIT_LIST_HEAD(&entity->links);
+	entity->num_links = 0;
+	entity->num_backlinks = 0;
 
 	spin_lock(&mdev->lock);
 	/* Initialize media_gobj embedded at the entity */
diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c
index 07f2dc6..ef2102a 100644
--- a/drivers/media/media-entity.c
+++ b/drivers/media/media-entity.c
@@ -197,7 +197,7 @@ void media_gobj_remove(struct media_gobj *gobj)
 }
 
 /**
- * media_entity_init - Initialize a media entity
+ * media_entity_pads_init - Initialize a media entity
  *
  * @num_pads: Total number of sink and source pads.
  * @pads: Array of 'num_pads' pads.
@@ -216,18 +216,15 @@ void media_gobj_remove(struct media_gobj *gobj)
  * number of allocated elements.
  *
  * The pads array is managed by the entity driver and passed to
- * media_entity_init() where its pointer will be stored in the entity structure.
+ * media_entity_pads_init() where its pointer will be stored in the entity structure.
  */
 int
-media_entity_init(struct media_entity *entity, u16 num_pads,
+media_entity_pads_init(struct media_entity *entity, u16 num_pads,
 		  struct media_pad *pads)
 {
 	struct media_device *mdev = entity->graph_obj.mdev;
 	unsigned int i;
 
-	entity->group_id = 0;
-	entity->num_links = 0;
-	entity->num_backlinks = 0;
 	entity->num_pads = num_pads;
 	entity->pads = pads;
 
@@ -247,7 +244,7 @@ media_entity_init(struct media_entity *entity, u16 num_pads,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(media_entity_init);
+EXPORT_SYMBOL_GPL(media_entity_pads_init);
 
 void
 media_entity_cleanup(struct media_entity *entity)
diff --git a/drivers/media/platform/exynos4-is/fimc-capture.c b/drivers/media/platform/exynos4-is/fimc-capture.c
index 48a8263..bf47d3b 100644
--- a/drivers/media/platform/exynos4-is/fimc-capture.c
+++ b/drivers/media/platform/exynos4-is/fimc-capture.c
@@ -1799,7 +1799,7 @@ static int fimc_register_capture_device(struct fimc_dev *fimc,
 	vid_cap->wb_fmt.code = fmt->mbus_code;
 
 	vid_cap->vd_pad.flags = MEDIA_PAD_FL_SINK;
-	ret = media_entity_init(&vfd->entity, 1, &vid_cap->vd_pad);
+	ret = media_entity_pads_init(&vfd->entity, 1, &vid_cap->vd_pad);
 	if (ret)
 		goto err_free_ctx;
 
@@ -1891,7 +1891,7 @@ int fimc_initialize_capture_subdev(struct fimc_dev *fimc)
 	fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK_CAM].flags = MEDIA_PAD_FL_SINK;
 	fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK_FIFO].flags = MEDIA_PAD_FL_SINK;
 	fimc->vid_cap.sd_pads[FIMC_SD_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&sd->entity, FIMC_SD_PADS_NUM,
+	ret = media_entity_pads_init(&sd->entity, FIMC_SD_PADS_NUM,
 				fimc->vid_cap.sd_pads);
 	if (ret)
 		return ret;
diff --git a/drivers/media/platform/exynos4-is/fimc-isp-video.c b/drivers/media/platform/exynos4-is/fimc-isp-video.c
index 9c7794b..bf9261e 100644
--- a/drivers/media/platform/exynos4-is/fimc-isp-video.c
+++ b/drivers/media/platform/exynos4-is/fimc-isp-video.c
@@ -616,7 +616,7 @@ int fimc_isp_video_device_register(struct fimc_isp *isp,
 	vdev->lock = &isp->video_lock;
 
 	iv->pad.flags = MEDIA_PAD_FL_SINK;
-	ret = media_entity_init(&vdev->entity, 1, &iv->pad);
+	ret = media_entity_pads_init(&vdev->entity, 1, &iv->pad);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/media/platform/exynos4-is/fimc-isp.c b/drivers/media/platform/exynos4-is/fimc-isp.c
index f52eebf..293b807 100644
--- a/drivers/media/platform/exynos4-is/fimc-isp.c
+++ b/drivers/media/platform/exynos4-is/fimc-isp.c
@@ -708,7 +708,7 @@ int fimc_isp_subdev_create(struct fimc_isp *isp)
 	isp->subdev_pads[FIMC_ISP_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
 	isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_FIFO].flags = MEDIA_PAD_FL_SOURCE;
 	isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_DMA].flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&sd->entity, FIMC_ISP_SD_PADS_NUM,
+	ret = media_entity_pads_init(&sd->entity, FIMC_ISP_SD_PADS_NUM,
 				isp->subdev_pads);
 	if (ret)
 		return ret;
diff --git a/drivers/media/platform/exynos4-is/fimc-lite.c b/drivers/media/platform/exynos4-is/fimc-lite.c
index 957cf14..e856491 100644
--- a/drivers/media/platform/exynos4-is/fimc-lite.c
+++ b/drivers/media/platform/exynos4-is/fimc-lite.c
@@ -1314,7 +1314,7 @@ static int fimc_lite_subdev_registered(struct v4l2_subdev *sd)
 		return ret;
 
 	fimc->vd_pad.flags = MEDIA_PAD_FL_SINK;
-	ret = media_entity_init(&vfd->entity, 1, &fimc->vd_pad);
+	ret = media_entity_pads_init(&vfd->entity, 1, &fimc->vd_pad);
 	if (ret < 0)
 		return ret;
 
@@ -1428,7 +1428,7 @@ static int fimc_lite_create_capture_subdev(struct fimc_lite *fimc)
 	fimc->subdev_pads[FLITE_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
 	fimc->subdev_pads[FLITE_SD_PAD_SOURCE_DMA].flags = MEDIA_PAD_FL_SOURCE;
 	fimc->subdev_pads[FLITE_SD_PAD_SOURCE_ISP].flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&sd->entity, FLITE_SD_PADS_NUM,
+	ret = media_entity_pads_init(&sd->entity, FLITE_SD_PADS_NUM,
 				fimc->subdev_pads);
 	if (ret)
 		return ret;
diff --git a/drivers/media/platform/exynos4-is/fimc-m2m.c b/drivers/media/platform/exynos4-is/fimc-m2m.c
index 8ff4e6f..55ec4c9 100644
--- a/drivers/media/platform/exynos4-is/fimc-m2m.c
+++ b/drivers/media/platform/exynos4-is/fimc-m2m.c
@@ -739,7 +739,7 @@ int fimc_register_m2m_device(struct fimc_dev *fimc,
 		return PTR_ERR(fimc->m2m.m2m_dev);
 	}
 
-	ret = media_entity_init(&vfd->entity, 0, NULL);
+	ret = media_entity_pads_init(&vfd->entity, 0, NULL);
 	if (ret)
 		goto err_me;
 
diff --git a/drivers/media/platform/exynos4-is/mipi-csis.c b/drivers/media/platform/exynos4-is/mipi-csis.c
index 8847797..ac5e50e 100644
--- a/drivers/media/platform/exynos4-is/mipi-csis.c
+++ b/drivers/media/platform/exynos4-is/mipi-csis.c
@@ -866,7 +866,7 @@ static int s5pcsis_probe(struct platform_device *pdev)
 
 	state->pads[CSIS_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
 	state->pads[CSIS_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&state->sd.entity,
+	ret = media_entity_pads_init(&state->sd.entity,
 				CSIS_PADS_NUM, state->pads);
 	if (ret < 0)
 		goto e_clkdis;
diff --git a/drivers/media/platform/omap3isp/ispccdc.c b/drivers/media/platform/omap3isp/ispccdc.c
index f0e530c..dae674c 100644
--- a/drivers/media/platform/omap3isp/ispccdc.c
+++ b/drivers/media/platform/omap3isp/ispccdc.c
@@ -2655,7 +2655,7 @@ static int ccdc_init_entities(struct isp_ccdc_device *ccdc)
 	pads[CCDC_PAD_SOURCE_OF].flags = MEDIA_PAD_FL_SOURCE;
 
 	me->ops = &ccdc_media_ops;
-	ret = media_entity_init(me, CCDC_PADS_NUM, pads);
+	ret = media_entity_pads_init(me, CCDC_PADS_NUM, pads);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/media/platform/omap3isp/ispccp2.c b/drivers/media/platform/omap3isp/ispccp2.c
index ae3038e..0c790b2 100644
--- a/drivers/media/platform/omap3isp/ispccp2.c
+++ b/drivers/media/platform/omap3isp/ispccp2.c
@@ -1076,7 +1076,7 @@ static int ccp2_init_entities(struct isp_ccp2_device *ccp2)
 	pads[CCP2_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
 
 	me->ops = &ccp2_media_ops;
-	ret = media_entity_init(me, CCP2_PADS_NUM, pads);
+	ret = media_entity_pads_init(me, CCP2_PADS_NUM, pads);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/media/platform/omap3isp/ispcsi2.c b/drivers/media/platform/omap3isp/ispcsi2.c
index b1617f7..f50f6b3 100644
--- a/drivers/media/platform/omap3isp/ispcsi2.c
+++ b/drivers/media/platform/omap3isp/ispcsi2.c
@@ -1250,7 +1250,7 @@ static int csi2_init_entities(struct isp_csi2_device *csi2)
 				    | MEDIA_PAD_FL_MUST_CONNECT;
 
 	me->ops = &csi2_media_ops;
-	ret = media_entity_init(me, CSI2_PADS_NUM, pads);
+	ret = media_entity_pads_init(me, CSI2_PADS_NUM, pads);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/media/platform/omap3isp/isppreview.c b/drivers/media/platform/omap3isp/isppreview.c
index cfb2debb..c300cb7 100644
--- a/drivers/media/platform/omap3isp/isppreview.c
+++ b/drivers/media/platform/omap3isp/isppreview.c
@@ -2287,7 +2287,7 @@ static int preview_init_entities(struct isp_prev_device *prev)
 	pads[PREV_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
 
 	me->ops = &preview_media_ops;
-	ret = media_entity_init(me, PREV_PADS_NUM, pads);
+	ret = media_entity_pads_init(me, PREV_PADS_NUM, pads);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/media/platform/omap3isp/ispresizer.c b/drivers/media/platform/omap3isp/ispresizer.c
index e3ecf17..cd0a9f6 100644
--- a/drivers/media/platform/omap3isp/ispresizer.c
+++ b/drivers/media/platform/omap3isp/ispresizer.c
@@ -1733,7 +1733,7 @@ static int resizer_init_entities(struct isp_res_device *res)
 	pads[RESZ_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
 
 	me->ops = &resizer_media_ops;
-	ret = media_entity_init(me, RESZ_PADS_NUM, pads);
+	ret = media_entity_pads_init(me, RESZ_PADS_NUM, pads);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/media/platform/omap3isp/ispstat.c b/drivers/media/platform/omap3isp/ispstat.c
index f7a5eee..1b9217d 100644
--- a/drivers/media/platform/omap3isp/ispstat.c
+++ b/drivers/media/platform/omap3isp/ispstat.c
@@ -1028,7 +1028,7 @@ static int isp_stat_init_entities(struct ispstat *stat, const char *name,
 	stat->pad.flags = MEDIA_PAD_FL_SINK | MEDIA_PAD_FL_MUST_CONNECT;
 	me->ops = NULL;
 
-	return media_entity_init(me, 1, &stat->pad);
+	return media_entity_pads_init(me, 1, &stat->pad);
 }
 
 int omap3isp_stat_init(struct ispstat *stat, const char *name,
diff --git a/drivers/media/platform/omap3isp/ispvideo.c b/drivers/media/platform/omap3isp/ispvideo.c
index 768efd7..1240b06 100644
--- a/drivers/media/platform/omap3isp/ispvideo.c
+++ b/drivers/media/platform/omap3isp/ispvideo.c
@@ -1368,7 +1368,7 @@ int omap3isp_video_init(struct isp_video *video, const char *name)
 	if (IS_ERR(video->alloc_ctx))
 		return PTR_ERR(video->alloc_ctx);
 
-	ret = media_entity_init(&video->video.entity, 1, &video->pad);
+	ret = media_entity_pads_init(&video->video.entity, 1, &video->pad);
 	if (ret < 0) {
 		vb2_dma_contig_cleanup_ctx(video->alloc_ctx);
 		return ret;
diff --git a/drivers/media/platform/s3c-camif/camif-capture.c b/drivers/media/platform/s3c-camif/camif-capture.c
index 05bfa9d..bd060ef 100644
--- a/drivers/media/platform/s3c-camif/camif-capture.c
+++ b/drivers/media/platform/s3c-camif/camif-capture.c
@@ -1144,7 +1144,7 @@ int s3c_camif_register_video_node(struct camif_dev *camif, int idx)
 		goto err_vd_rel;
 
 	vp->pad.flags = MEDIA_PAD_FL_SINK;
-	ret = media_entity_init(&vfd->entity, 1, &vp->pad);
+	ret = media_entity_pads_init(&vfd->entity, 1, &vp->pad);
 	if (ret)
 		goto err_vd_rel;
 
@@ -1559,7 +1559,7 @@ int s3c_camif_create_subdev(struct camif_dev *camif)
 	camif->pads[CAMIF_SD_PAD_SOURCE_C].flags = MEDIA_PAD_FL_SOURCE;
 	camif->pads[CAMIF_SD_PAD_SOURCE_P].flags = MEDIA_PAD_FL_SOURCE;
 
-	ret = media_entity_init(&sd->entity, CAMIF_SD_PADS_NUM,
+	ret = media_entity_pads_init(&sd->entity, CAMIF_SD_PADS_NUM,
 				camif->pads);
 	if (ret)
 		return ret;
diff --git a/drivers/media/platform/vsp1/vsp1_entity.c b/drivers/media/platform/vsp1/vsp1_entity.c
index 619942f..d730853 100644
--- a/drivers/media/platform/vsp1/vsp1_entity.c
+++ b/drivers/media/platform/vsp1/vsp1_entity.c
@@ -219,7 +219,7 @@ int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity,
 	entity->pads[num_pads - 1].flags = MEDIA_PAD_FL_SOURCE;
 
 	/* Initialize the media entity. */
-	return media_entity_init(&entity->subdev.entity, num_pads,
+	return media_entity_pads_init(&entity->subdev.entity, num_pads,
 				 entity->pads);
 }
 
diff --git a/drivers/media/platform/vsp1/vsp1_video.c b/drivers/media/platform/vsp1/vsp1_video.c
index 024d10d..e330430 100644
--- a/drivers/media/platform/vsp1/vsp1_video.c
+++ b/drivers/media/platform/vsp1/vsp1_video.c
@@ -1192,7 +1192,7 @@ int vsp1_video_init(struct vsp1_video *video, struct vsp1_entity *rwpf)
 	video->pipe.state = VSP1_PIPELINE_STOPPED;
 
 	/* Initialize the media entity... */
-	ret = media_entity_init(&video->video.entity, 1, &video->pad);
+	ret = media_entity_pads_init(&video->video.entity, 1, &video->pad);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/media/platform/xilinx/xilinx-dma.c b/drivers/media/platform/xilinx/xilinx-dma.c
index b69c963..0181ff4 100644
--- a/drivers/media/platform/xilinx/xilinx-dma.c
+++ b/drivers/media/platform/xilinx/xilinx-dma.c
@@ -675,7 +675,7 @@ int xvip_dma_init(struct xvip_composite_device *xdev, struct xvip_dma *dma,
 	dma->pad.flags = type == V4L2_BUF_TYPE_VIDEO_CAPTURE
 		       ? MEDIA_PAD_FL_SINK : MEDIA_PAD_FL_SOURCE;
 
-	ret = media_entity_init(&dma->video.entity, 1, &dma->pad);
+	ret = media_entity_pads_init(&dma->video.entity, 1, &dma->pad);
 	if (ret < 0)
 		goto error;
 
diff --git a/drivers/media/platform/xilinx/xilinx-tpg.c b/drivers/media/platform/xilinx/xilinx-tpg.c
index c09ca51..2ec1f6c 100644
--- a/drivers/media/platform/xilinx/xilinx-tpg.c
+++ b/drivers/media/platform/xilinx/xilinx-tpg.c
@@ -838,7 +838,7 @@ static int xtpg_probe(struct platform_device *pdev)
 	subdev->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 	subdev->entity.ops = &xtpg_media_ops;
 
-	ret = media_entity_init(&subdev->entity, xtpg->npads, xtpg->pads);
+	ret = media_entity_pads_init(&subdev->entity, xtpg->npads, xtpg->pads);
 	if (ret < 0)
 		goto error;
 
diff --git a/drivers/media/usb/au0828/au0828-video.c b/drivers/media/usb/au0828/au0828-video.c
index 839361c..8c54fd2 100644
--- a/drivers/media/usb/au0828/au0828-video.c
+++ b/drivers/media/usb/au0828/au0828-video.c
@@ -1810,12 +1810,12 @@ static void au0828_analog_create_entities(struct au0828_dev *dev)
 
 	/* Initialize Video and VBI pads */
 	dev->video_pad.flags = MEDIA_PAD_FL_SINK;
-	ret = media_entity_init(&dev->vdev.entity, 1, &dev->video_pad);
+	ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);
 	if (ret < 0)
 		pr_err("failed to initialize video media entity!\n");
 
 	dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
-	ret = media_entity_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
+	ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
 	if (ret < 0)
 		pr_err("failed to initialize vbi media entity!\n");
 
@@ -1847,7 +1847,7 @@ static void au0828_analog_create_entities(struct au0828_dev *dev)
 			break;
 		}
 
-		ret = media_entity_init(ent, 1, &dev->input_pad[i]);
+		ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
 		if (ret < 0)
 			pr_err("failed to initialize input pad[%d]!\n", i);
 
diff --git a/drivers/media/usb/cx231xx/cx231xx-video.c b/drivers/media/usb/cx231xx/cx231xx-video.c
index 905ccd7c..9b88cd8 100644
--- a/drivers/media/usb/cx231xx/cx231xx-video.c
+++ b/drivers/media/usb/cx231xx/cx231xx-video.c
@@ -2175,7 +2175,7 @@ int cx231xx_register_analog_devices(struct cx231xx *dev)
 	cx231xx_vdev_init(dev, &dev->vdev, &cx231xx_video_template, "video");
 #if defined(CONFIG_MEDIA_CONTROLLER)
 	dev->video_pad.flags = MEDIA_PAD_FL_SINK;
-	ret = media_entity_init(&dev->vdev.entity, 1, &dev->video_pad);
+	ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);
 	if (ret < 0)
 		dev_err(dev->dev, "failed to initialize video media entity!\n");
 #endif
@@ -2202,7 +2202,7 @@ int cx231xx_register_analog_devices(struct cx231xx *dev)
 
 #if defined(CONFIG_MEDIA_CONTROLLER)
 	dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
-	ret = media_entity_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
+	ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
 	if (ret < 0)
 		dev_err(dev->dev, "failed to initialize vbi media entity!\n");
 #endif
diff --git a/drivers/media/usb/uvc/uvc_entity.c b/drivers/media/usb/uvc/uvc_entity.c
index 7f82b65..38e893a 100644
--- a/drivers/media/usb/uvc/uvc_entity.c
+++ b/drivers/media/usb/uvc/uvc_entity.c
@@ -94,10 +94,10 @@ static int uvc_mc_init_entity(struct uvc_entity *entity)
 		strlcpy(entity->subdev.name, entity->name,
 			sizeof(entity->subdev.name));
 
-		ret = media_entity_init(&entity->subdev.entity,
+		ret = media_entity_pads_init(&entity->subdev.entity,
 					entity->num_pads, entity->pads);
 	} else if (entity->vdev != NULL) {
-		ret = media_entity_init(&entity->vdev->entity,
+		ret = media_entity_pads_init(&entity->vdev->entity,
 					entity->num_pads, entity->pads);
 		if (entity->flags & UVC_ENTITY_FLAG_DEFAULT)
 			entity->vdev->entity.flags |= MEDIA_ENT_FL_DEFAULT;
diff --git a/drivers/media/v4l2-core/tuner-core.c b/drivers/media/v4l2-core/tuner-core.c
index 05fc4df..76496fd 100644
--- a/drivers/media/v4l2-core/tuner-core.c
+++ b/drivers/media/v4l2-core/tuner-core.c
@@ -701,7 +701,7 @@ register_client:
 	t->sd.entity.function = MEDIA_ENT_F_TUNER;
 	t->sd.entity.name = t->name;
 
-	ret = media_entity_init(&t->sd.entity, TUNER_NUM_PADS, &t->pad[0]);
+	ret = media_entity_pads_init(&t->sd.entity, TUNER_NUM_PADS, &t->pad[0]);
 	if (ret < 0) {
 		tuner_err("failed to initialize media entity!\n");
 		kfree(t);
diff --git a/drivers/media/v4l2-core/v4l2-flash-led-class.c b/drivers/media/v4l2-core/v4l2-flash-led-class.c
index 5c686a2..13d5a36 100644
--- a/drivers/media/v4l2-core/v4l2-flash-led-class.c
+++ b/drivers/media/v4l2-core/v4l2-flash-led-class.c
@@ -651,7 +651,7 @@ struct v4l2_flash *v4l2_flash_init(
 	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 	strlcpy(sd->name, config->dev_name, sizeof(sd->name));
 
-	ret = media_entity_init(&sd->entity, 0, NULL);
+	ret = media_entity_pads_init(&sd->entity, 0, NULL);
 	if (ret < 0)
 		return ERR_PTR(ret);