[media] Staging/media: Use dev_ printks in go7007/wis-tw2804.c

fixed below checkpatch warning.
- WARNING: Prefer netdev_err(netdev, ... then dev_err(dev, ... then pr_err(...  to printk(KERN_ERR ...
- WARNING: Prefer netdev_dbg(netdev, ... then dev_dbg(dev, ... then pr_debug(...  to printk(KERN_DEBUG ...
Signed-off-by: YAMANE Toshiaki <yamanetoshi@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/staging/media/go7007/wis-tw2804.c

@@ -128,30 +128,32 @@ static int wis_tw2804_command(struct i2c_client *client,
 		int *input = arg;
 
 		if (*input < 0 || *input > 3) {
-			printk(KERN_ERR "wis-tw2804: channel %d is not "
-					"between 0 and 3!\n", *input);
+			dev_err(&client->dev,
+				"channel %d is not between 0 and 3!\n", *input);
 			return 0;
 		}
 		dec->channel = *input;
-		printk(KERN_DEBUG "wis-tw2804: initializing TW2804 "
-				"channel %d\n", dec->channel);
+		dev_dbg(&client->dev, "initializing TW2804 channel %d\n",
+			dec->channel);
 		if (dec->channel == 0 &&
 				write_regs(client, global_registers, 0) < 0) {
-			printk(KERN_ERR "wis-tw2804: error initializing "
-					"TW2804 global registers\n");
+			dev_err(&client->dev,
+				"error initializing TW2804 global registers\n");
 			return 0;
 		}
 		if (write_regs(client, channel_registers, dec->channel) < 0) {
-			printk(KERN_ERR "wis-tw2804: error initializing "
-					"TW2804 channel %d\n", dec->channel);
+			dev_err(&client->dev,
+				"error initializing TW2804 channel %d\n",
+				dec->channel);
 			return 0;
 		}
 		return 0;
 	}
 
 	if (dec->channel < 0) {
-		printk(KERN_DEBUG "wis-tw2804: ignoring command %08x until "
-				"channel number is set\n", cmd);
+		dev_dbg(&client->dev,
+			"ignoring command %08x until channel number is set\n",
+			cmd);
 		return 0;
 	}
 
@@ -311,7 +313,7 @@ static int wis_tw2804_probe(struct i2c_client *client,
 	dec->hue = 128;
 	i2c_set_clientdata(client, dec);
 
-	printk(KERN_DEBUG "wis-tw2804: creating TW2804 at address %d on %s\n",
+	dev_dbg(&client->dev, "creating TW2804 at address %d on %s\n",
 		client->addr, adapter->name);
 
 	return 0;