diff --git a/drivers/media/usb/cx231xx/cx231xx-i2c.c b/drivers/media/usb/cx231xx/cx231xx-i2c.c
index 473cd3433fe5d44b378c084dd7d6fb9ac53a693f..3e7982ef180a83a9f4c08ee0bc5fdf40e91959b2 100644
--- a/drivers/media/usb/cx231xx/cx231xx-i2c.c
+++ b/drivers/media/usb/cx231xx/cx231xx-i2c.c
@@ -608,7 +608,7 @@ struct i2c_adapter *cx231xx_get_i2c_adap(struct cx231xx *dev, int i2c_port)
 	case I2C_1_MUX_3:
 		return dev->muxc->adapter[1];
 	default:
-		return NULL;
+		BUG();
 	}
 }
 EXPORT_SYMBOL_GPL(cx231xx_get_i2c_adap);