[media] cx231xx: Improve the log message

Unfortunately, on devices that have multiple interfaces, udev->dev
points to the parent device (usb) instead of the cx231xx specific one.

Due to that the logs don't look too nice, as they'll print messages
as if they were produced by USB core:
  usb-1-2: New device Conexant Corporation Polaris AV Capturb @ 480 Mbps (1554:5010) with 7 interfaces

Instead of using the name of the parent device, let's use the name
of the first cx231xx interface for all cx231xx sub-modules.

With this path, the logs will be nicer:

  cx231xx 1-2:1.1: New device Conexant Corporation Polaris AV Capturb @ 480 Mbps (1554:5010) with 7 interfaces

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
diff --git a/drivers/media/usb/cx231xx/cx231xx-cards.c b/drivers/media/usb/cx231xx/cx231xx-cards.c
index 7156344..ae05d59 100644
--- a/drivers/media/usb/cx231xx/cx231xx-cards.c
+++ b/drivers/media/usb/cx231xx/cx231xx-cards.c
@@ -855,7 +855,7 @@
 
 	if (dev->tuner_type == TUNER_XC5000) {
 		if (command == XC5000_TUNER_RESET) {
-			dev_dbg(&dev->udev->dev,
+			dev_dbg(dev->dev,
 				"Tuner CB: RESET: cmd %d : tuner type %d\n",
 				command, dev->tuner_type);
 			cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit,
@@ -915,7 +915,7 @@
 
 	cx231xx_set_model(dev);
 
-	dev_info(&dev->udev->dev, "Identified as %s (card=%d)\n",
+	dev_info(dev->dev, "Identified as %s (card=%d)\n",
 		dev->board.name, dev->model);
 
 	/* set the direction for GPIO pins */
@@ -989,7 +989,7 @@
 	/* start reading at offset 0 */
 	ret = i2c_transfer(client->adapter, &msg_write, 1);
 	if (ret < 0) {
-		dev_err(&dev->udev->dev, "Can't read eeprom\n");
+		dev_err(dev->dev, "Can't read eeprom\n");
 		return ret;
 	}
 
@@ -999,7 +999,7 @@
 
 		ret = i2c_transfer(client->adapter, &msg_read, 1);
 		if (ret < 0) {
-			dev_err(&dev->udev->dev, "Can't read eeprom\n");
+			dev_err(dev->dev, "Can't read eeprom\n");
 			return ret;
 		}
 		eedata_cur += msg_read.len;
@@ -1007,7 +1007,7 @@
 	}
 
 	for (i = 0; i + 15 < len; i += 16)
-		dev_dbg(&dev->udev->dev, "i2c eeprom %02x: %*ph\n",
+		dev_dbg(dev->dev, "i2c eeprom %02x: %*ph\n",
 			i, 16, &eedata[i]);
 
 	return 0;
@@ -1028,7 +1028,7 @@
 					cx231xx_get_i2c_adap(dev, I2C_0),
 					"cx25840", 0x88 >> 1, NULL);
 		if (dev->sd_cx25840 == NULL)
-			dev_err(&dev->udev->dev,
+			dev_err(dev->dev,
 				"cx25840 subdev registration failure\n");
 		cx25840_call(dev, core, load_fw);
 
@@ -1043,7 +1043,7 @@
 						    "tuner",
 						    dev->tuner_addr, NULL);
 		if (dev->sd_tuner == NULL)
-			dev_err(&dev->udev->dev,
+			dev_err(dev->dev,
 				"tuner subdev registration failure\n");
 		else
 			cx231xx_config_tuner(dev);
@@ -1150,7 +1150,7 @@
 	/* Query cx231xx to find what pcb config it is related to */
 	retval = initialize_cx231xx(dev);
 	if (retval < 0) {
-		dev_err(&udev->dev, "Failed to read PCB config\n");
+		dev_err(dev->dev, "Failed to read PCB config\n");
 		return retval;
 	}
 
@@ -1166,7 +1166,7 @@
 
 	retval = cx231xx_config(dev);
 	if (retval) {
-		dev_err(&udev->dev, "error configuring device\n");
+		dev_err(dev->dev, "error configuring device\n");
 		return -ENOMEM;
 	}
 
@@ -1176,7 +1176,7 @@
 	/* register i2c bus */
 	retval = cx231xx_dev_init(dev);
 	if (retval) {
-		dev_err(&udev->dev,
+		dev_err(dev->dev,
 			"%s: cx231xx_i2c_register - errCode [%d]!\n",
 			__func__, retval);
 		goto err_dev_init;
@@ -1199,8 +1199,8 @@
 
 	retval = cx231xx_config(dev);
 	if (retval) {
-		dev_err(&udev->dev, "%s: cx231xx_config - errCode [%d]!\n",
-			       __func__, retval);
+		dev_err(dev->dev, "%s: cx231xx_config - errCode [%d]!\n",
+			__func__, retval);
 		goto err_dev_init;
 	}
 
@@ -1216,9 +1216,9 @@
 	cx231xx_add_into_devlist(dev);
 
 	if (dev->board.has_417) {
-		dev_info(&udev->dev, "attach 417 %d\n", dev->model);
+		dev_info(dev->dev, "attach 417 %d\n", dev->model);
 		if (cx231xx_417_register(dev) < 0) {
-			dev_err(&udev->dev,
+			dev_err(dev->dev,
 				"%s() Failed to register 417 on VID_B\n",
 				__func__);
 		}
@@ -1284,7 +1284,7 @@
 	/* compute alternate max packet sizes for video */
 	idx = dev->current_pcb_config.hs_config_info[0].interface_info.video_index + 1;
 	if (idx >= dev->max_iad_interface_count) {
-		dev_err(&dev->udev->dev,
+		dev_err(dev->dev,
 			"Video PCB interface #%d doesn't exist\n", idx);
 		return -ENODEV;
 	}
@@ -1294,7 +1294,7 @@
 	dev->video_mode.end_point_addr = uif->altsetting[0].endpoint[isoc_pipe].desc.bEndpointAddress;
 	dev->video_mode.num_alt = uif->num_altsetting;
 
-	dev_info(&dev->udev->dev,
+	dev_info(dev->dev,
 		 "video EndPoint Addr 0x%x, Alternate settings: %i\n",
 		 dev->video_mode.end_point_addr,
 		 dev->video_mode.num_alt);
@@ -1306,7 +1306,7 @@
 	for (i = 0; i < dev->video_mode.num_alt; i++) {
 		u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].desc.wMaxPacketSize);
 		dev->video_mode.alt_max_pkt_size[i] = (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
-		dev_dbg(&dev->udev->dev,
+		dev_dbg(dev->dev,
 			"Alternate setting %i, max size= %i\n", i,
 			dev->video_mode.alt_max_pkt_size[i]);
 	}
@@ -1315,7 +1315,7 @@
 
 	idx = dev->current_pcb_config.hs_config_info[0].interface_info.vanc_index + 1;
 	if (idx >= dev->max_iad_interface_count) {
-		dev_err(&dev->udev->dev,
+		dev_err(dev->dev,
 			"VBI PCB interface #%d doesn't exist\n", idx);
 		return -ENODEV;
 	}
@@ -1326,7 +1326,7 @@
 			bEndpointAddress;
 
 	dev->vbi_mode.num_alt = uif->num_altsetting;
-	dev_info(&dev->udev->dev,
+	dev_info(dev->dev,
 		 "VBI EndPoint Addr 0x%x, Alternate settings: %i\n",
 		 dev->vbi_mode.end_point_addr,
 		 dev->vbi_mode.num_alt);
@@ -1342,7 +1342,7 @@
 				desc.wMaxPacketSize);
 		dev->vbi_mode.alt_max_pkt_size[i] =
 		    (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
-		dev_dbg(&dev->udev->dev,
+		dev_dbg(dev->dev,
 			"Alternate setting %i, max size= %i\n", i,
 			dev->vbi_mode.alt_max_pkt_size[i]);
 	}
@@ -1352,7 +1352,7 @@
 	/* compute alternate max packet sizes for sliced CC */
 	idx = dev->current_pcb_config.hs_config_info[0].interface_info.hanc_index + 1;
 	if (idx >= dev->max_iad_interface_count) {
-		dev_err(&dev->udev->dev,
+		dev_err(dev->dev,
 			"Sliced CC PCB interface #%d doesn't exist\n", idx);
 		return -ENODEV;
 	}
@@ -1363,7 +1363,7 @@
 			bEndpointAddress;
 
 	dev->sliced_cc_mode.num_alt = uif->num_altsetting;
-	dev_info(&dev->udev->dev,
+	dev_info(dev->dev,
 		 "sliced CC EndPoint Addr 0x%x, Alternate settings: %i\n",
 		 dev->sliced_cc_mode.end_point_addr,
 		 dev->sliced_cc_mode.num_alt);
@@ -1376,7 +1376,7 @@
 				desc.wMaxPacketSize);
 		dev->sliced_cc_mode.alt_max_pkt_size[i] =
 		    (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
-		dev_dbg(&dev->udev->dev,
+		dev_dbg(dev->dev,
 			"Alternate setting %i, max size= %i\n", i,
 			dev->sliced_cc_mode.alt_max_pkt_size[i]);
 	}
@@ -1392,6 +1392,7 @@
 			     const struct usb_device_id *id)
 {
 	struct usb_device *udev;
+	struct device *d = &interface->dev;
 	struct usb_interface *uif;
 	struct cx231xx *dev = NULL;
 	int retval = -ENODEV;
@@ -1416,7 +1417,7 @@
 		nr = find_first_zero_bit(&cx231xx_devused, CX231XX_MAXBOARDS);
 		if (nr >= CX231XX_MAXBOARDS) {
 			/* No free device slots */
-			dev_err(&udev->dev,
+			dev_err(d,
 				"Supports only %i devices.\n",
 				CX231XX_MAXBOARDS);
 			return -ENOMEM;
@@ -1434,6 +1435,7 @@
 	dev->devno = nr;
 	dev->model = id->driver_info;
 	dev->video_mode.alt = -1;
+	dev->dev = d;
 
 	dev->interface_count++;
 	/* reset gpio dir and value */
@@ -1472,7 +1474,7 @@
 		speed = "unknown";
 	}
 
-	dev_info(&udev->dev,
+	dev_info(d,
 		 "New device %s %s @ %s Mbps (%04x:%04x) with %d interfaces\n",
 		 udev->manufacturer ? udev->manufacturer : "",
 		 udev->product ? udev->product : "",
@@ -1489,12 +1491,12 @@
 
 	assoc_desc = udev->actconfig->intf_assoc[0];
 	if (assoc_desc->bFirstInterface != ifnum) {
-		dev_err(&udev->dev, "Not found matching IAD interface\n");
+		dev_err(d, "Not found matching IAD interface\n");
 		retval = -ENODEV;
 		goto err_if;
 	}
 
-	dev_dbg(&udev->dev, "registering interface %d\n", ifnum);
+	dev_dbg(d, "registering interface %d\n", ifnum);
 
 	/* save our data pointer in this interface device */
 	usb_set_intfdata(interface, dev);
@@ -1502,7 +1504,7 @@
 	/* Create v4l2 device */
 	retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
 	if (retval) {
-		dev_err(&udev->dev, "v4l2_device_register failed\n");
+		dev_err(d, "v4l2_device_register failed\n");
 		goto err_v4l2;
 	}
 
@@ -1519,8 +1521,8 @@
 		/* compute alternate max packet sizes for TS1 */
 		idx = dev->current_pcb_config.hs_config_info[0].interface_info.ts1_index + 1;
 		if (idx >= dev->max_iad_interface_count) {
-			dev_err(&udev->dev,
-				"TS1 PCB interface #%d doesn't exist\n", idx);
+			dev_err(d, "TS1 PCB interface #%d doesn't exist\n",
+				idx);
 			retval = -ENODEV;
 			goto err_video_alt;
 		}
@@ -1531,7 +1533,7 @@
 				desc.bEndpointAddress;
 
 		dev->ts1_mode.num_alt = uif->num_altsetting;
-		dev_info(&udev->dev,
+		dev_info(d,
 			 "TS EndPoint Addr 0x%x, Alternate settings: %i\n",
 			 dev->ts1_mode.end_point_addr,
 			 dev->ts1_mode.num_alt);
@@ -1548,9 +1550,8 @@
 						wMaxPacketSize);
 			dev->ts1_mode.alt_max_pkt_size[i] =
 			    (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
-			dev_dbg(&udev->dev,
-				"Alternate setting %i, max size= %i\n", i,
-				dev->ts1_mode.alt_max_pkt_size[i]);
+			dev_dbg(d, "Alternate setting %i, max size= %i\n",
+				i, dev->ts1_mode.alt_max_pkt_size[i]);
 		}
 	}
 
@@ -1614,7 +1615,7 @@
 	wake_up_interruptible_all(&dev->open);
 
 	if (dev->users) {
-		dev_warn(&dev->udev->dev,
+		dev_warn(dev->dev,
 			 "device %s is open! Deregistration and memory deallocation are deferred on close.\n",
 			 video_device_node_name(dev->vdev));