V4L/DVB: ngene: Fix I2C initialisation

Use I2C_CLASS_TV_DIGITAL, not I2C_ADAP_CLASS_TV_DIGITAL.
Remove initialisation of bus_lock mutex.
Thanks to Mauro for pointing out.

Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Thanks-to: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/ngene/ngene-core.c

@@ -847,19 +847,14 @@ static int ngene_i2c_init(struct ngene *dev, int dev_nr)
 	struct i2c_adapter *adap = &(dev->channel[dev_nr].i2c_adapter);
 
 	i2c_set_adapdata(adap, &(dev->channel[dev_nr]));
-#ifdef I2C_ADAP_CLASS_TV_DIGITAL
-	adap->class = I2C_ADAP_CLASS_TV_DIGITAL | I2C_CLASS_TV_ANALOG;
-#else
-	adap->class = I2C_CLASS_TV_ANALOG;
-#endif
+	adap->class = I2C_CLASS_TV_DIGITAL | I2C_CLASS_TV_ANALOG;
 
 	strcpy(adap->name, "nGene");
 
 	adap->algo = &ngene_i2c_algo;
 	adap->algo_data = (void *)&(dev->channel[dev_nr]);
 	adap->dev.parent = &dev->pci_dev->dev;
 
-	mutex_init(&adap->bus_lock);
 	return i2c_add_adapter(adap);
 }