i2c: tiny-usb: Correct I2C fault codes.

This patch changes the I2C fault codes according to the specified
values in Documentation/i2c/fault-codes.
Signed-off-by: Christoph Müllner <christoph.muellner@theobroma-systems.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/i2c-tiny-usb.c

@@ -84,7 +84,7 @@ static int usb_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs, int num)
 				     pmsg->buf, pmsg->len) != pmsg->len) {
 				dev_err(&adapter->dev,
 					"failure reading data\n");
-				ret = -EREMOTEIO;
+				ret = -EIO;
 				goto out;
 			}
 		} else {
@@ -94,7 +94,7 @@ static int usb_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs, int num)
 				      pmsg->buf, pmsg->len) != pmsg->len) {
 				dev_err(&adapter->dev,
 					"failure writing data\n");
-				ret = -EREMOTEIO;
+				ret = -EIO;
 				goto out;
 			}
 		}
@@ -102,13 +102,13 @@ static int usb_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs, int num)
 		/* read status */
 		if (usb_read(adapter, CMD_GET_STATUS, 0, 0, pstatus, 1) != 1) {
 			dev_err(&adapter->dev, "failure reading status\n");
-			ret = -EREMOTEIO;
+			ret = -EIO;
 			goto out;
 		}
 
 		dev_dbg(&adapter->dev, "  status = %d\n", *pstatus);
 		if (*pstatus == STATUS_ADDRESS_NAK) {
-			ret = -EREMOTEIO;
+			ret = -ENXIO;
 			goto out;
 		}
 	}