i2c_driver.id_table is mandatory now, so we can simplify
i2c_device_probe() a bit.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
 {
        struct i2c_client       *client = to_i2c_client(dev);
        struct i2c_driver       *driver = to_i2c_driver(dev->driver);
-       const struct i2c_device_id *id;
        int status;
 
-       if (!driver->probe)
+       if (!driver->probe || !driver->id_table)
                return -ENODEV;
        client->driver = driver;
        dev_dbg(dev, "probe\n");
 
-       if (driver->id_table)
-               id = i2c_match_id(driver->id_table, client);
-       else
-               id = NULL;
-       status = driver->probe(client, id);
+       status = driver->probe(client, i2c_match_id(driver->id_table, client));
        if (status)
                client->driver = NULL;
        return status;