[media] em28xx: convert it from pr_foo() to dev_foo()

Instead of using pr_foo(), use dev_foo(), with provides a
better output. As this device is a multi-interface one,
we'll set the device name to show the chipset and the driver
used.

While here, get rid of printk continuation messages.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/usb/em28xx/em28xx-audio.c

@@ -56,8 +56,9 @@ MODULE_PARM_DESC(debug, "activates debug info");
 
 #define dprintk(fmt, arg...) do {					\
 	if (debug)						\
-		printk(KERN_DEBUG pr_fmt("audio: %s: " fmt),		\
-			 __func__, ##arg); } while (0)
+		dev_printk(KERN_DEBUG, &dev->udev->dev,			\
+			   "video: %s: " fmt, __func__, ## arg);	\
+} while (0)
 
 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 
@@ -91,7 +92,8 @@ static void em28xx_audio_isocirq(struct urb *urb)
 	struct snd_pcm_runtime   *runtime;
 
 	if (dev->disconnected) {
-		dprintk("device disconnected while streaming. URB status=%d.\n", urb->status);
+		dprintk("device disconnected while streaming. URB status=%d.\n",
+			urb->status);
 		atomic_set(&dev->adev.stream_started, 0);
 		return;
 	}
@@ -164,7 +166,8 @@ static void em28xx_audio_isocirq(struct urb *urb)
 
 	status = usb_submit_urb(urb, GFP_ATOMIC);
 	if (status < 0)
-		pr_err("resubmit of audio urb failed (error=%i)\n",
+		dev_err(&dev->udev->dev,
+			"resubmit of audio urb failed (error=%i)\n",
 			status);
 	return;
 }
@@ -182,7 +185,8 @@ static int em28xx_init_audio_isoc(struct em28xx *dev)
 
 		errCode = usb_submit_urb(dev->adev.urb[i], GFP_ATOMIC);
 		if (errCode) {
-			pr_err("submit of audio urb failed (error=%i)\n",
+			dev_err(&dev->udev->dev,
+				"submit of audio urb failed (error=%i)\n",
 				errCode);
 			em28xx_deinit_isoc_audio(dev);
 			atomic_set(&dev->adev.stream_started, 0);
@@ -197,6 +201,7 @@ static int em28xx_init_audio_isoc(struct em28xx *dev)
 static int snd_pcm_alloc_vmalloc_buffer(struct snd_pcm_substream *subs,
 					size_t size)
 {
+	struct em28xx *dev = snd_pcm_substream_chip(subs);
 	struct snd_pcm_runtime *runtime = subs->runtime;
 
 	dprintk("Allocating vbuffer\n");
@@ -254,7 +259,8 @@ static int snd_em28xx_capture_open(struct snd_pcm_substream *substream)
 	int nonblock, ret = 0;
 
 	if (!dev) {
-		pr_err("BUG: em28xx can't find device struct. Can't proceed with open\n");
+		dev_err(&dev->udev->dev,
+			"BUG: em28xx can't find device struct. Can't proceed with open\n");
 		return -ENODEV;
 	}
 
@@ -317,7 +323,8 @@ static int snd_em28xx_capture_open(struct snd_pcm_substream *substream)
 err:
 	mutex_unlock(&dev->lock);
 
-	pr_err("Error while configuring em28xx mixer\n");
+	dev_err(&dev->udev->dev,
+		"Error while configuring em28xx mixer\n");
 	return ret;
 }
 
@@ -755,7 +762,7 @@ static int em28xx_audio_urb_init(struct em28xx *dev)
 	intf = usb_ifnum_to_if(dev->udev, dev->ifnum);
 
 	if (intf->num_altsetting <= alt) {
-		pr_err("alt %d doesn't exist on interface %d\n",
+		dev_err(&dev->udev->dev, "alt %d doesn't exist on interface %d\n",
 			      dev->ifnum, alt);
 		return -ENODEV;
 	}
@@ -771,18 +778,17 @@ static int em28xx_audio_urb_init(struct em28xx *dev)
 	}
 
 	if (!ep) {
-		pr_err("Couldn't find an audio endpoint");
+		dev_err(&dev->udev->dev, "Couldn't find an audio endpoint");
 		return -ENODEV;
 	}
 
 	ep_size = em28xx_audio_ep_packet_size(dev->udev, ep);
 	interval = 1 << (ep->bInterval - 1);
 
-	pr_info("Endpoint 0x%02x %s on intf %d alt %d interval = %d, size %d\n",
+	dev_info(&dev->udev->dev,
+		 "Endpoint 0x%02x %s on intf %d alt %d interval = %d, size %d\n",
 		 EM28XX_EP_AUDIO, usb_speed_string(dev->udev->speed),
-		     dev->ifnum, alt,
-		     interval,
-		     ep_size);
+		 dev->ifnum, alt, interval, ep_size);
 
 	/* Calculate the number and size of URBs to better fit the audio samples */
 
@@ -819,7 +825,8 @@ static int em28xx_audio_urb_init(struct em28xx *dev)
 	if (urb_size > ep_size * npackets)
 		npackets = DIV_ROUND_UP(urb_size, ep_size);
 
-	pr_info("Number of URBs: %d, with %d packets and %d size\n",
+	dev_info(&dev->udev->dev,
+		 "Number of URBs: %d, with %d packets and %d size\n",
 		 num_urb, npackets, urb_size);
 
 	/* Estimate the bytes per period */
@@ -857,7 +864,8 @@ static int em28xx_audio_urb_init(struct em28xx *dev)
 		buf = usb_alloc_coherent(dev->udev, npackets * ep_size, GFP_ATOMIC,
 					 &urb->transfer_dma);
 		if (!buf) {
-			pr_err("usb_alloc_coherent failed!\n");
+			dev_err(&dev->udev->dev,
+				"usb_alloc_coherent failed!\n");
 			em28xx_audio_free_urb(dev);
 			return -ENOMEM;
 		}
@@ -897,12 +905,14 @@ static int em28xx_audio_init(struct em28xx *dev)
 		return 0;
 	}
 
-	pr_info("Binding audio extension\n");
+	dev_info(&dev->udev->dev, "Binding audio extension\n");
 
 	kref_get(&dev->ref);
 
-	pr_info("em28xx-audio.c: Copyright (C) 2006 Markus Rechberger\n");
-	pr_info("em28xx-audio.c: Copyright (C) 2007-2016 Mauro Carvalho Chehab\n");
+	dev_info(&dev->udev->dev,
+		 "em28xx-audio.c: Copyright (C) 2006 Markus Rechberger\n");
+	dev_info(&dev->udev->dev,
+		 "em28xx-audio.c: Copyright (C) 2007-2016 Mauro Carvalho Chehab\n");
 
 	err = snd_card_new(&dev->udev->dev, index[devnr], "Em28xx Audio",
 			   THIS_MODULE, 0, &card);
@@ -952,7 +962,7 @@ static int em28xx_audio_init(struct em28xx *dev)
 	if (err < 0)
 		goto urb_free;
 
-	pr_info("Audio extension successfully initialized\n");
+	dev_info(&dev->udev->dev, "Audio extension successfully initialized\n");
 	return 0;
 
 urb_free:
@@ -977,7 +987,7 @@ static int em28xx_audio_fini(struct em28xx *dev)
 		return 0;
 	}
 
-	pr_info("Closing audio extension\n");
+	dev_info(&dev->udev->dev, "Closing audio extension\n");
 
 	if (dev->adev.sndcard) {
 		snd_card_disconnect(dev->adev.sndcard);
@@ -1001,7 +1011,7 @@ static int em28xx_audio_suspend(struct em28xx *dev)
 	if (dev->usb_audio_type != EM28XX_USB_AUDIO_VENDOR)
 		return 0;
 
-	pr_info("Suspending audio extension\n");
+	dev_info(&dev->udev->dev, "Suspending audio extension\n");
 	em28xx_deinit_isoc_audio(dev);
 	atomic_set(&dev->adev.stream_started, 0);
 	return 0;
@@ -1015,7 +1025,7 @@ static int em28xx_audio_resume(struct em28xx *dev)
 	if (dev->usb_audio_type != EM28XX_USB_AUDIO_VENDOR)
 		return 0;
 
-	pr_info("Resuming audio extension\n");
+	dev_info(&dev->udev->dev, "Resuming audio extension\n");
 	/* Nothing to do other than schedule_work() ?? */
 	schedule_work(&dev->adev.wq_trigger);
 	return 0;

drivers/media/usb/em28xx/em28xx-camera.c

@@ -22,6 +22,7 @@
 #include "em28xx.h"
 
 #include <linux/i2c.h>
+#include <linux/usb.h>
 #include <media/soc_camera.h>
 #include <media/i2c/mt9v011.h>
 #include <media/v4l2-clk.h>
@@ -120,13 +121,15 @@ static int em28xx_probe_sensor_micron(struct em28xx *dev)
 		ret = i2c_master_send(&client, &reg, 1);
 		if (ret < 0) {
 			if (ret != -ENXIO)
-				pr_err("couldn't read from i2c device 0x%02x: error %i\n",
+				dev_err(&dev->udev->dev,
+					"couldn't read from i2c device 0x%02x: error %i\n",
 				       client.addr << 1, ret);
 			continue;
 		}
 		ret = i2c_master_recv(&client, (u8 *)&id_be, 2);
 		if (ret < 0) {
-			pr_err("couldn't read from i2c device 0x%02x: error %i\n",
+			dev_err(&dev->udev->dev,
+				"couldn't read from i2c device 0x%02x: error %i\n",
 				client.addr << 1, ret);
 			continue;
 		}
@@ -135,13 +138,15 @@ static int em28xx_probe_sensor_micron(struct em28xx *dev)
 		reg = 0xff;
 		ret = i2c_master_send(&client, &reg, 1);
 		if (ret < 0) {
-			pr_err("couldn't read from i2c device 0x%02x: error %i\n",
+			dev_err(&dev->udev->dev,
+				"couldn't read from i2c device 0x%02x: error %i\n",
 				client.addr << 1, ret);
 			continue;
 		}
 		ret = i2c_master_recv(&client, (u8 *)&id_be, 2);
 		if (ret < 0) {
-			pr_err("couldn't read from i2c device 0x%02x: error %i\n",
+			dev_err(&dev->udev->dev,
+				"couldn't read from i2c device 0x%02x: error %i\n",
 				client.addr << 1, ret);
 			continue;
 		}
@@ -180,14 +185,17 @@ static int em28xx_probe_sensor_micron(struct em28xx *dev)
 			dev->em28xx_sensor = EM28XX_MT9M001;
 			break;
 		default:
-			pr_info("unknown Micron sensor detected: 0x%04x\n", id);
+			dev_info(&dev->udev->dev,
+				 "unknown Micron sensor detected: 0x%04x\n", id);
 			return 0;
 		}
 
 		if (dev->em28xx_sensor == EM28XX_NOSENSOR)
-			pr_info("unsupported sensor detected: %s\n", name);
+			dev_info(&dev->udev->dev,
+				 "unsupported sensor detected: %s\n", name);
 		else
-			pr_info("sensor %s detected\n", name);
+			dev_info(&dev->udev->dev,
+				 "sensor %s detected\n", name);
 
 		dev->i2c_client[dev->def_i2c_bus].addr = client.addr;
 		return 0;
@@ -217,7 +225,8 @@ static int em28xx_probe_sensor_omnivision(struct em28xx *dev)
 		ret = i2c_smbus_read_byte_data(&client, reg);
 		if (ret < 0) {
 			if (ret != -ENXIO)
-				pr_err("couldn't read from i2c device 0x%02x: error %i\n",
+				dev_err(&dev->udev->dev,
+					"couldn't read from i2c device 0x%02x: error %i\n",
 					client.addr << 1, ret);
 			continue;
 		}
@@ -225,7 +234,8 @@ static int em28xx_probe_sensor_omnivision(struct em28xx *dev)
 		reg = 0x1d;
 		ret = i2c_smbus_read_byte_data(&client, reg);
 		if (ret < 0) {
-			pr_err("couldn't read from i2c device 0x%02x: error %i\n",
+			dev_err(&dev->udev->dev,
+				"couldn't read from i2c device 0x%02x: error %i\n",
 				client.addr << 1, ret);
 			continue;
 		}
@@ -237,7 +247,8 @@ static int em28xx_probe_sensor_omnivision(struct em28xx *dev)
 		reg = 0x0a;
 		ret = i2c_smbus_read_byte_data(&client, reg);
 		if (ret < 0) {
-			pr_err("couldn't read from i2c device 0x%02x: error %i\n",
+			dev_err(&dev->udev->dev,
+				"couldn't read from i2c device 0x%02x: error %i\n",
 				client.addr << 1, ret);
 			continue;
 		}
@@ -245,7 +256,8 @@ static int em28xx_probe_sensor_omnivision(struct em28xx *dev)
 		reg = 0x0b;
 		ret = i2c_smbus_read_byte_data(&client, reg);
 		if (ret < 0) {
-			pr_err("couldn't read from i2c device 0x%02x: error %i\n",
+			dev_err(&dev->udev->dev,
+				"couldn't read from i2c device 0x%02x: error %i\n",
 				client.addr << 1, ret);
 			continue;
 		}
@@ -284,15 +296,18 @@ static int em28xx_probe_sensor_omnivision(struct em28xx *dev)
 			name = "OV9655";
 			break;
 		default:
-			pr_info("unknown OmniVision sensor detected: 0x%04x\n",
+			dev_info(&dev->udev->dev,
+				 "unknown OmniVision sensor detected: 0x%04x\n",
 				id);
 			return 0;
 		}
 
 		if (dev->em28xx_sensor == EM28XX_NOSENSOR)
-			pr_info("unsupported sensor detected: %s\n", name);
+			dev_info(&dev->udev->dev,
+				 "unsupported sensor detected: %s\n", name);
 		else
-			pr_info("sensor %s detected\n", name);
+			dev_info(&dev->udev->dev,
+				 "sensor %s detected\n", name);
 
 		dev->i2c_client[dev->def_i2c_bus].addr = client.addr;
 		return 0;
@@ -316,7 +331,8 @@ int em28xx_detect_sensor(struct em28xx *dev)
 	 */
 
 	if (dev->em28xx_sensor == EM28XX_NOSENSOR && ret < 0) {
-		pr_info("No sensor detected\n");
+		dev_info(&dev->udev->dev,
+			 "No sensor detected\n");
 		return -ENODEV;
 	}
 

drivers/media/usb/em28xx/em28xx-dvb.c

@@ -74,8 +74,9 @@ MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
 
 #define dprintk(level, fmt, arg...) do {				\
-if (debug >= level)						\
-	printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg);	\
+	if (debug >= level)						\
+		dev_printk(KERN_DEBUG, &dev->udev->dev,			\
+			   "dvb: " fmt, ## arg);			\
 } while (0)
 
 struct em28xx_dvb {
@@ -735,7 +736,7 @@ static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe)
 
 	ret = gpio_request_one(dvb->lna_gpio, flags, NULL);
 	if (ret)
-		pr_err("gpio request failed %d\n", ret);
+		dev_err(&dev->udev->dev, "gpio request failed %d\n", ret);
 	else
 		gpio_free(dvb->lna_gpio);
 
@@ -935,19 +936,20 @@ static int em28xx_attach_xc3028(u8 addr, struct em28xx *dev)
 	cfg.ctrl  = &ctl;
 
 	if (!dev->dvb->fe[0]) {
-		pr_err("dvb frontend not attached. Can't attach xc3028\n");
+		dev_err(&dev->udev->dev,
+			"dvb frontend not attached. Can't attach xc3028\n");
 		return -EINVAL;
 	}
 
 	fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
 	if (!fe) {
-		pr_err("xc3028 attach failed\n");
+		dev_err(&dev->udev->dev, "xc3028 attach failed\n");
 		dvb_frontend_detach(dev->dvb->fe[0]);
 		dev->dvb->fe[0] = NULL;
 		return -EINVAL;
 	}
 
-	pr_info("xc3028 attached\n");
+	dev_info(&dev->udev->dev, "xc3028 attached\n");
 
 	return 0;
 }
@@ -963,10 +965,12 @@ static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
 	mutex_init(&dvb->lock);
 
 	/* register adapter */
-	result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
-				      adapter_nr);
+	result = dvb_register_adapter(&dvb->adapter,
+				      dev_name(&dev->udev->dev), module,
+				      device, adapter_nr);
 	if (result < 0) {
-		pr_warn("dvb_register_adapter failed (errno = %d)\n",
+		dev_warn(&dev->udev->dev,
+			 "dvb_register_adapter failed (errno = %d)\n",
 			 result);
 		goto fail_adapter;
 	}
@@ -984,7 +988,8 @@ static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
 	/* register frontend */
 	result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
 	if (result < 0) {
-		pr_warn("dvb_register_frontend failed (errno = %d)\n",
+		dev_warn(&dev->udev->dev,
+			 "dvb_register_frontend failed (errno = %d)\n",
 			 result);
 		goto fail_frontend0;
 	}
@@ -993,7 +998,8 @@ static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
 	if (dvb->fe[1]) {
 		result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
 		if (result < 0) {
-			pr_warn("2nd dvb_register_frontend failed (errno = %d)\n",
+			dev_warn(&dev->udev->dev,
+				 "2nd dvb_register_frontend failed (errno = %d)\n",
 				 result);
 			goto fail_frontend1;
 		}
@@ -1011,7 +1017,9 @@ static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
 
 	result = dvb_dmx_init(&dvb->demux);
 	if (result < 0) {
-		pr_warn("dvb_dmx_init failed (errno = %d)\n", result);
+		dev_warn(&dev->udev->dev,
+			 "dvb_dmx_init failed (errno = %d)\n",
+			 result);
 		goto fail_dmx;
 	}
 
@@ -1020,14 +1028,17 @@ static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
 	dvb->dmxdev.capabilities = 0;
 	result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 	if (result < 0) {
-		pr_warn("dvb_dmxdev_init failed (errno = %d)\n", result);
+		dev_warn(&dev->udev->dev,
+			 "dvb_dmxdev_init failed (errno = %d)\n",
+			 result);
 		goto fail_dmxdev;
 	}
 
 	dvb->fe_hw.source = DMX_FRONTEND_0;
 	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 	if (result < 0) {
-		pr_warn("add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
+		dev_warn(&dev->udev->dev,
+			 "add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 			 result);
 		goto fail_fe_hw;
 	}
@@ -1035,14 +1046,17 @@ static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
 	dvb->fe_mem.source = DMX_MEMORY_FE;
 	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 	if (result < 0) {
-		pr_warn("add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
+		dev_warn(&dev->udev->dev,
+			 "add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 			 result);
 		goto fail_fe_mem;
 	}
 
 	result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 	if (result < 0) {
-		pr_warn("connect_frontend failed (errno = %d)\n", result);
+		dev_warn(&dev->udev->dev,
+			 "connect_frontend failed (errno = %d)\n",
+			 result);
 		goto fail_fe_conn;
 	}
 
@@ -1114,7 +1128,7 @@ static int em28xx_dvb_init(struct em28xx *dev)
 		return 0;
 	}
 
-	pr_info("Binding DVB extension\n");
+	dev_info(&dev->udev->dev, "Binding DVB extension\n");
 
 	dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
 	if (!dvb)
@@ -1138,7 +1152,8 @@ static int em28xx_dvb_init(struct em28xx *dev)
 					   EM28XX_DVB_NUM_ISOC_PACKETS);
 	}
 	if (result) {
-		pr_err("em28xx_dvb: failed to pre-allocate USB transfer buffers for DVB.\n");
+		dev_err(&dev->udev->dev,
+			"failed to pre-allocate USB transfer buffers for DVB.\n");
 		kfree(dvb);
 		dev->dvb = NULL;
 		return result;
@@ -1317,7 +1332,8 @@ static int em28xx_dvb_init(struct em28xx *dev)
 			result = gpio_request_one(dvb->lna_gpio,
 						  GPIOF_OUT_INIT_LOW, NULL);
 			if (result)
-				pr_err("gpio request failed %d\n",
+				dev_err(&dev->udev->dev,
+					"gpio request failed %d\n",
 					result);
 			else
 				gpio_free(dvb->lna_gpio);
@@ -1933,11 +1949,12 @@ static int em28xx_dvb_init(struct em28xx *dev)
 		}
 		break;
 	default:
-		pr_err("The frontend of your DVB/ATSC card isn't supported yet\n");
+		dev_err(&dev->udev->dev,
+			"The frontend of your DVB/ATSC card isn't supported yet\n");
 		break;
 	}
 	if (NULL == dvb->fe[0]) {
-		pr_err("frontend initialization failed\n");
+		dev_err(&dev->udev->dev, "frontend initialization failed\n");
 		result = -EINVAL;
 		goto out_free;
 	}
@@ -1952,7 +1969,7 @@ static int em28xx_dvb_init(struct em28xx *dev)
 	if (result < 0)
 		goto out_free;
 
-	pr_info("DVB extension successfully initialized\n");
+	dev_info(&dev->udev->dev, "DVB extension successfully initialized\n");
 
 	kref_get(&dev->ref);
 
@@ -1992,7 +2009,7 @@ static int em28xx_dvb_fini(struct em28xx *dev)
 	if (!dev->dvb)
 		return 0;
 
-	pr_info("Closing DVB extension\n");
+	dev_info(&dev->udev->dev, "Closing DVB extension\n");
 
 	dvb = dev->dvb;
 
@@ -2050,17 +2067,17 @@ static int em28xx_dvb_suspend(struct em28xx *dev)
 	if (!dev->board.has_dvb)
 		return 0;
 
-	pr_info("Suspending DVB extension\n");
+	dev_info(&dev->udev->dev, "Suspending DVB extension\n");
 	if (dev->dvb) {
 		struct em28xx_dvb *dvb = dev->dvb;
 
 		if (dvb->fe[0]) {
 			ret = dvb_frontend_suspend(dvb->fe[0]);
-			pr_info("fe0 suspend %d\n", ret);
+			dev_info(&dev->udev->dev, "fe0 suspend %d\n", ret);
 		}
 		if (dvb->fe[1]) {
 			dvb_frontend_suspend(dvb->fe[1]);
-			pr_info("fe1 suspend %d\n", ret);
+			dev_info(&dev->udev->dev, "fe1 suspend %d\n", ret);
 		}
 	}
 
@@ -2077,18 +2094,18 @@ static int em28xx_dvb_resume(struct em28xx *dev)
 	if (!dev->board.has_dvb)
 		return 0;
 
-	pr_info("Resuming DVB extension\n");
+	dev_info(&dev->udev->dev, "Resuming DVB extension\n");
 	if (dev->dvb) {
 		struct em28xx_dvb *dvb = dev->dvb;
 
 		if (dvb->fe[0]) {
 			ret = dvb_frontend_resume(dvb->fe[0]);
-			pr_info("fe0 resume %d\n", ret);
+			dev_info(&dev->udev->dev, "fe0 resume %d\n", ret);
 		}
 
 		if (dvb->fe[1]) {
 			ret = dvb_frontend_resume(dvb->fe[1]);
-			pr_info("fe1 resume %d\n", ret);
+			dev_info(&dev->udev->dev, "fe1 resume %d\n", ret);
 		}
 	}
 

drivers/media/usb/em28xx/em28xx-input.c

@@ -41,10 +41,11 @@ MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
 
 #define MODULE_NAME "em28xx"
 
-#define dprintk(fmt, arg...) \
-	if (ir_debug) { \
-		printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg); \
-	}
+#define dprintk( fmt, arg...) do {					\
+	if (ir_debug)							\
+		dev_printk(KERN_DEBUG, &ir->dev->udev->dev,		\
+			   "input: %s: " fmt, __func__, ## arg);	\
+} while (0)
 
 /**********************************************************
  Polling structure used by em28xx IR's
@@ -458,7 +459,8 @@ static int em28xx_ir_change_protocol(struct rc_dev *rc_dev, u64 *rc_type)
 	case CHIP_ID_EM28178:
 		return em2874_ir_change_protocol(rc_dev, rc_type);
 	default:
-		pr_err("Unrecognized em28xx chip id 0x%02x: IR not supported\n",
+		dev_err(&ir->dev->udev->dev,
+			"Unrecognized em28xx chip id 0x%02x: IR not supported\n",
 			dev->chip_id);
 		return -EINVAL;
 	}
@@ -567,7 +569,7 @@ static int em28xx_register_snapshot_button(struct em28xx *dev)
 	struct input_dev *input_dev;
 	int err;
 
-	pr_info("Registering snapshot button...\n");
+	dev_info(&dev->udev->dev, "Registering snapshot button...\n");
 	input_dev = input_allocate_device();
 	if (!input_dev)
 		return -ENOMEM;
@@ -591,7 +593,7 @@ static int em28xx_register_snapshot_button(struct em28xx *dev)
 
 	err = input_register_device(input_dev);
 	if (err) {
-		pr_err("input_register_device failed\n");
+		dev_err(&dev->udev->dev, "input_register_device failed\n");
 		input_free_device(input_dev);
 		return err;
 	}
@@ -631,7 +633,8 @@ static void em28xx_init_buttons(struct em28xx *dev)
 		} else if (button->role == EM28XX_BUTTON_ILLUMINATION) {
 			/* Check sanity */
 			if (!em28xx_find_led(dev, EM28XX_LED_ILLUMINATION)) {
-				pr_err("BUG: illumination button defined, but no illumination LED.\n");
+				dev_err(&dev->udev->dev,
+					"BUG: illumination button defined, but no illumination LED.\n");
 				goto next_button;
 			}
 		}
@@ -667,7 +670,7 @@ static void em28xx_shutdown_buttons(struct em28xx *dev)
 	dev->num_button_polling_addresses = 0;
 	/* Deregister input devices */
 	if (dev->sbutton_input_dev != NULL) {
-		pr_info("Deregistering snapshot button\n");
+		dev_info(&dev->udev->dev, "Deregistering snapshot button\n");
 		input_unregister_device(dev->sbutton_input_dev);
 		dev->sbutton_input_dev = NULL;
 	}
@@ -696,18 +699,20 @@ static int em28xx_ir_init(struct em28xx *dev)
 		i2c_rc_dev_addr = em28xx_probe_i2c_ir(dev);
 		if (!i2c_rc_dev_addr) {
 			dev->board.has_ir_i2c = 0;
-			pr_warn("No i2c IR remote control device found.\n");
+			dev_warn(&dev->udev->dev,
+				 "No i2c IR remote control device found.\n");
 			return -ENODEV;
 		}
 	}
 
 	if (dev->board.ir_codes == NULL && !dev->board.has_ir_i2c) {
 		/* No remote control support */
-		pr_warn("Remote control support is not available for this card.\n");
+		dev_warn(&dev->udev->dev,
+			 "Remote control support is not available for this card.\n");
 		return 0;
 	}
 
-	pr_info("Registering input extension\n");
+	dev_info(&dev->udev->dev, "Registering input extension\n");
 
 	ir = kzalloc(sizeof(*ir), GFP_KERNEL);
 	if (!ir)
@@ -791,7 +796,8 @@ static int em28xx_ir_init(struct em28xx *dev)
 	ir->polling = 100; /* ms */
 
 	/* init input device */
-	snprintf(ir->name, sizeof(ir->name), "em28xx IR (%s)", dev->name);
+	snprintf(ir->name, sizeof(ir->name), "%s IR",
+		 dev_name(&dev->udev->dev));
 
 	usb_make_path(dev->udev, ir->phys, sizeof(ir->phys));
 	strlcat(ir->phys, "/input0", sizeof(ir->phys));
@@ -810,7 +816,7 @@ static int em28xx_ir_init(struct em28xx *dev)
 	if (err)
 		goto error;
 
-	pr_info("Input extension successfully initalized\n");
+	dev_info(&dev->udev->dev, "Input extension successfully initalized\n");
 
 	return 0;
 
@@ -831,7 +837,7 @@ static int em28xx_ir_fini(struct em28xx *dev)
 		return 0;
 	}
 
-	pr_info("Closing input extension\n");
+	dev_info(&dev->udev->dev, "Closing input extension\n");
 
 	em28xx_shutdown_buttons(dev);
 
@@ -860,7 +866,7 @@ static int em28xx_ir_suspend(struct em28xx *dev)
 	if (dev->is_audio_only)
 		return 0;
 
-	pr_info("Suspending input extension\n");
+	dev_info(&dev->udev->dev, "Suspending input extension\n");
 	if (ir)
 		cancel_delayed_work_sync(&ir->work);
 	cancel_delayed_work_sync(&dev->buttons_query_work);
@@ -877,7 +883,7 @@ static int em28xx_ir_resume(struct em28xx *dev)
 	if (dev->is_audio_only)
 		return 0;
 
-	pr_info("Resuming input extension\n");
+	dev_info(&dev->udev->dev, "Resuming input extension\n");
 	/* if suspend calls ir_raw_event_unregister(), the should call
 	   ir_raw_event_register() */
 	if (ir)

drivers/media/usb/em28xx/em28xx-vbi.c

@@ -27,6 +27,7 @@
 #include <linux/module.h>
 #include <linux/hardirq.h>
 #include <linux/init.h>
+#include <linux/usb.h>
 
 #include "em28xx-v4l.h"
 
@@ -64,7 +65,8 @@ static int vbi_buffer_prepare(struct vb2_buffer *vb)
 	size = v4l2->vbi_width * v4l2->vbi_height * 2;
 
 	if (vb2_plane_size(vb, 0) < size) {
-		pr_info("%s data will not fit into plane (%lu < %lu)\n",
+		dev_info(&dev->udev->dev,
+			 "%s data will not fit into plane (%lu < %lu)\n",
 			 __func__, vb2_plane_size(vb, 0), size);
 		return -EINVAL;
 	}

drivers/media/usb/em28xx/em28xx-video.c

@@ -64,15 +64,17 @@ static int alt;
 module_param(alt, int, 0644);
 MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
 
-#define em28xx_videodbg(fmt, arg...) do {\
+#define em28xx_videodbg(fmt, arg...) do {				\
 	if (video_debug)						\
-		printk(KERN_DEBUG pr_fmt("video: %s: " fmt), \
-			 __func__, ##arg); } while (0)
+		dev_printk(KERN_DEBUG, &dev->udev->dev,			\
+			   "video: %s: " fmt, __func__, ## arg);	\
+} while (0)
 
 #define em28xx_isocdbg(fmt, arg...) do {\
 	if (isoc_debug) \
-		printk(KERN_DEBUG pr_fmt("isoc: %s: " fmt), \
-			 __func__, ##arg); } while (0)
+		dev_printk(KERN_DEBUG, &dev->udev->dev,			\
+			   "isoc: %s: " fmt, __func__, ## arg);		\
+} while (0)
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC " - v4l2 interface");
@@ -411,7 +413,8 @@ static int em28xx_set_alternate(struct em28xx *dev)
 			dev->alt, dev->max_pkt_size);
 	errCode = usb_set_interface(dev->udev, dev->ifnum, dev->alt);
 	if (errCode < 0) {
-		pr_err("cannot change alternate number to %d (error=%i)\n",
+		dev_err(&dev->udev->dev,
+			"cannot change alternate number to %d (error=%i)\n",
 			dev->alt, errCode);
 		return errCode;
 	}
@@ -923,7 +926,8 @@ static int em28xx_enable_analog_tuner(struct em28xx *dev)
 
 		ret = media_entity_setup_link(link, flags);
 		if (ret) {
-			pr_err("Couldn't change link %s->%s to %s. Error %d\n",
+			dev_err(&dev->udev->dev,
+				"Couldn't change link %s->%s to %s. Error %d\n",
 				source->name, sink->name,
 				flags ? "enabled" : "disabled",
 				ret);
@@ -954,14 +958,16 @@ static void em28xx_v4l2_create_entities(struct em28xx *dev)
 	v4l2->video_pad.flags = MEDIA_PAD_FL_SINK;
 	ret = media_entity_pads_init(&v4l2->vdev.entity, 1, &v4l2->video_pad);
 	if (ret < 0)
-		pr_err("failed to initialize video media entity!\n");
+		dev_err(&dev->udev->dev,
+			"failed to initialize video media entity!\n");
 
 	if (em28xx_vbi_supported(dev)) {
 		v4l2->vbi_pad.flags = MEDIA_PAD_FL_SINK;
 		ret = media_entity_pads_init(&v4l2->vbi_dev.entity, 1,
 					     &v4l2->vbi_pad);
 		if (ret < 0)
-			pr_err("failed to initialize vbi media entity!\n");
+			dev_err(&dev->udev->dev,
+				"failed to initialize vbi media entity!\n");
 	}
 
 	/* Webcams don't have input connectors */
@@ -994,11 +1000,13 @@ static void em28xx_v4l2_create_entities(struct em28xx *dev)
 
 		ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
 		if (ret < 0)
-			pr_err("failed to initialize input pad[%d]!\n", i);
+			dev_err(&dev->udev->dev,
+				"failed to initialize input pad[%d]!\n", i);
 
 		ret = media_device_register_entity(dev->media_dev, ent);
 		if (ret < 0)
-			pr_err("failed to register input entity %d!\n", i);
+			dev_err(&dev->udev->dev,
+				"failed to register input entity %d!\n", i);
 	}
 #endif
 }
@@ -2045,7 +2053,8 @@ static int em28xx_v4l2_open(struct file *filp)
 
 	ret = v4l2_fh_open(filp);
 	if (ret) {
-		pr_err("%s: v4l2_fh_open() returned error %d\n",
+		dev_err(&dev->udev->dev,
+			"%s: v4l2_fh_open() returned error %d\n",
 		       __func__, ret);
 		mutex_unlock(&dev->lock);
 		return ret;
@@ -2100,7 +2109,7 @@ static int em28xx_v4l2_fini(struct em28xx *dev)
 	if (v4l2 == NULL)
 		return 0;
 
-	pr_info("Closing video extension\n");
+	dev_info(&dev->udev->dev, "Closing video extension\n");
 
 	mutex_lock(&dev->lock);
 
@@ -2111,17 +2120,17 @@ static int em28xx_v4l2_fini(struct em28xx *dev)
 	em28xx_v4l2_media_release(dev);
 
 	if (video_is_registered(&v4l2->radio_dev)) {
-		pr_info("V4L2 device %s deregistered\n",
+		dev_info(&dev->udev->dev, "V4L2 device %s deregistered\n",
 			video_device_node_name(&v4l2->radio_dev));
 		video_unregister_device(&v4l2->radio_dev);
 	}
 	if (video_is_registered(&v4l2->vbi_dev)) {
-		pr_info("V4L2 device %s deregistered\n",
+		dev_info(&dev->udev->dev, "V4L2 device %s deregistered\n",
 			video_device_node_name(&v4l2->vbi_dev));
 		video_unregister_device(&v4l2->vbi_dev);
 	}
 	if (video_is_registered(&v4l2->vdev)) {
-		pr_info("V4L2 device %s deregistered\n",
+		dev_info(&dev->udev->dev, "V4L2 device %s deregistered\n",
 			video_device_node_name(&v4l2->vdev));
 		video_unregister_device(&v4l2->vdev);
 	}
@@ -2151,7 +2160,7 @@ static int em28xx_v4l2_suspend(struct em28xx *dev)
 	if (!dev->has_video)
 		return 0;
 
-	pr_info("Suspending video extension\n");
+	dev_info(&dev->udev->dev, "Suspending video extension\n");
 	em28xx_stop_urbs(dev);
 	return 0;
 }
@@ -2164,7 +2173,7 @@ static int em28xx_v4l2_resume(struct em28xx *dev)
 	if (!dev->has_video)
 		return 0;
 
-	pr_info("Resuming video extension\n");
+	dev_info(&dev->udev->dev, "Resuming video extension\n");
 	/* what do we do here */
 	return 0;
 }
@@ -2201,7 +2210,8 @@ static int em28xx_v4l2_close(struct file *filp)
 		em28xx_videodbg("setting alternate 0\n");
 		errCode = usb_set_interface(dev->udev, 0, 0);
 		if (errCode < 0) {
-			pr_err("cannot change alternate number to 0 (error=%i)\n",
+			dev_err(&dev->udev->dev,
+				"cannot change alternate number to 0 (error=%i)\n",
 				errCode);
 		}
 	}
@@ -2335,7 +2345,7 @@ static void em28xx_vdev_init(struct em28xx *dev,
 		vfd->tvnorms = 0;
 
 	snprintf(vfd->name, sizeof(vfd->name), "%s %s",
-		 dev->name, type_name);
+		 dev_name(&dev->udev->dev), type_name);
 
 	video_set_drvdata(vfd, dev);
 }
@@ -2419,7 +2429,7 @@ static int em28xx_v4l2_init(struct em28xx *dev)
 		return 0;
 	}
 
-	pr_info("Registering V4L2 extension\n");
+	dev_info(&dev->udev->dev, "Registering V4L2 extension\n");
 
 	mutex_lock(&dev->lock);
 
@@ -2437,7 +2447,8 @@ static int em28xx_v4l2_init(struct em28xx *dev)
 #endif
 	ret = v4l2_device_register(&dev->udev->dev, &v4l2->v4l2_dev);
 	if (ret < 0) {
-		pr_err("Call to v4l2_device_register() failed!\n");
+		dev_err(&dev->udev->dev,
+			"Call to v4l2_device_register() failed!\n");
 		goto err;
 	}
 
@@ -2521,7 +2532,8 @@ static int em28xx_v4l2_init(struct em28xx *dev)
 	/* Configure audio */
 	ret = em28xx_audio_setup(dev);
 	if (ret < 0) {
-		pr_err("%s: Error while setting audio - error [%d]!\n",
+		dev_err(&dev->udev->dev,
+			"%s: Error while setting audio - error [%d]!\n",
 			__func__, ret);
 		goto unregister_dev;
 	}
@@ -2549,7 +2561,8 @@ static int em28xx_v4l2_init(struct em28xx *dev)
 		/* Send a reset to other chips via gpio */
 		ret = em28xx_write_reg(dev, EM2820_R08_GPIO_CTRL, 0xf7);
 		if (ret < 0) {
-			pr_err("%s: em28xx_write_reg - msp34xx(1) failed! error [%d]\n",
+			dev_err(&dev->udev->dev,
+				"%s: em28xx_write_reg - msp34xx(1) failed! error [%d]\n",
 				__func__, ret);
 			goto unregister_dev;
 		}
@@ -2557,7 +2570,8 @@ static int em28xx_v4l2_init(struct em28xx *dev)
 
 		ret = em28xx_write_reg(dev, EM2820_R08_GPIO_CTRL, 0xff);
 		if (ret < 0) {
-			pr_err("%s: em28xx_write_reg - msp34xx(2) failed! error [%d]\n",
+			dev_err(&dev->udev->dev,
+				"%s: em28xx_write_reg - msp34xx(2) failed! error [%d]\n",
 				__func__, ret);
 			goto unregister_dev;
 		}
@@ -2659,7 +2673,8 @@ static int em28xx_v4l2_init(struct em28xx *dev)
 	ret = video_register_device(&v4l2->vdev, VFL_TYPE_GRABBER,
 				    video_nr[dev->devno]);
 	if (ret) {
-		pr_err("unable to register video device (error=%i).\n", ret);
+		dev_err(&dev->udev->dev,
+			"unable to register video device (error=%i).\n", ret);
 		goto unregister_dev;
 	}
 
@@ -2688,7 +2703,8 @@ static int em28xx_v4l2_init(struct em28xx *dev)
 		ret = video_register_device(&v4l2->vbi_dev, VFL_TYPE_VBI,
 					    vbi_nr[dev->devno]);
 		if (ret < 0) {
-			pr_err("unable to register vbi device\n");
+			dev_err(&dev->udev->dev,
+				"unable to register vbi device\n");
 			goto unregister_dev;
 		}
 	}
@@ -2699,10 +2715,12 @@ static int em28xx_v4l2_init(struct em28xx *dev)
 		ret = video_register_device(&v4l2->radio_dev, VFL_TYPE_RADIO,
 					    radio_nr[dev->devno]);
 		if (ret < 0) {
-			pr_err("can't register radio device\n");
+			dev_err(&dev->udev->dev,
+				"can't register radio device\n");
 			goto unregister_dev;
 		}
-		pr_info("Registered radio device as %s\n",
+		dev_info(&dev->udev->dev,
+			 "Registered radio device as %s\n",
 			 video_device_node_name(&v4l2->radio_dev));
 	}
 
@@ -2712,17 +2730,20 @@ static int em28xx_v4l2_init(struct em28xx *dev)
 #ifdef CONFIG_MEDIA_CONTROLLER
 	ret = v4l2_mc_create_media_graph(dev->media_dev);
 	if (ret) {
-		pr_err("failed to create media graph\n");
+		dev_err(&dev->udev->dev,
+			"failed to create media graph\n");
 		em28xx_v4l2_media_release(dev);
 		goto unregister_dev;
 	}
 #endif
 
-	pr_info("V4L2 video device registered as %s\n",
+	dev_info(&dev->udev->dev,
+		 "V4L2 video device registered as %s\n",
 		 video_device_node_name(&v4l2->vdev));
 
 	if (video_is_registered(&v4l2->vbi_dev))
-		pr_info("V4L2 VBI device registered as %s\n",
+		dev_info(&dev->udev->dev,
+			 "V4L2 VBI device registered as %s\n",
 			 video_device_node_name(&v4l2->vbi_dev));
 
 	/* Save some power by putting tuner to sleep */
@@ -2731,7 +2752,8 @@ static int em28xx_v4l2_init(struct em28xx *dev)
 	/* initialize videobuf2 stuff */
 	em28xx_vb2_setup(dev);
 
-	pr_info("V4L2 extension successfully initialized\n");
+	dev_info(&dev->udev->dev,
+		 "V4L2 extension successfully initialized\n");
 
 	kref_get(&dev->ref);
 
@@ -2740,17 +2762,20 @@ static int em28xx_v4l2_init(struct em28xx *dev)
 
 unregister_dev:
 	if (video_is_registered(&v4l2->radio_dev)) {
-		pr_info("V4L2 device %s deregistered\n",
+		dev_info(&dev->udev->dev,
+			 "V4L2 device %s deregistered\n",
 			 video_device_node_name(&v4l2->radio_dev));
 		video_unregister_device(&v4l2->radio_dev);
 	}
 	if (video_is_registered(&v4l2->vbi_dev)) {
-		pr_info("V4L2 device %s deregistered\n",
+		dev_info(&dev->udev->dev,
+			 "V4L2 device %s deregistered\n",
 			 video_device_node_name(&v4l2->vbi_dev));
 		video_unregister_device(&v4l2->vbi_dev);
 	}
 	if (video_is_registered(&v4l2->vdev)) {
-		pr_info("V4L2 device %s deregistered\n",
+		dev_info(&dev->udev->dev,
+			 "V4L2 device %s deregistered\n",
 			 video_device_node_name(&v4l2->vdev));
 		video_unregister_device(&v4l2->vdev);
 	}

drivers/media/usb/em28xx/em28xx.h

@@ -29,8 +29,6 @@
 #define EM28XX_VERSION "0.2.2"
 #define DRIVER_DESC    "Empia em28xx device driver"
 
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
 #include <linux/workqueue.h>
 #include <linux/i2c.h>
 #include <linux/mutex.h>
@@ -612,7 +610,6 @@ struct em28xx {
 	struct em28xx_IR *ir;
 
 	/* generic device properties */
-	char name[30];		/* name (including minor) of the device */
 	int model;		/* index in the device_data struct */
 	int devno;		/* marks the number of this device */
 	enum em28xx_chip_id chip_id;