i2c: rcar: fix NACK error code

The response to a bus NACK is to return -ENXIO instead of the
-EREMOTEIO being currently returned by the driver.
Signed-off-by: NBen Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/i2c-rcar.c

@@ -598,7 +598,7 @@ static int rcar_i2c_master_xfer(struct i2c_adapter *adap,
 		 * error handling
 		 */
 		if (rcar_i2c_flags_has(priv, ID_NACK)) {
-			ret = -EREMOTEIO;
+			ret = -ENXIO;
 			break;
 		}
 
@@ -617,7 +617,7 @@ static int rcar_i2c_master_xfer(struct i2c_adapter *adap,
 
 	pm_runtime_put(dev);
 
-	if (ret < 0 && ret != -EREMOTEIO)
+	if (ret < 0 && ret != -ENXIO)
 		dev_err(dev, "error %d : %x\n", ret, priv->flags);
 
 	return ret;