[PATCH] i2c: bug fix for busses/i2c-mv64xxx.c

When an i2c transfer is successful, an incorrect value is returned.
This patch fixes that.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/i2c/busses/i2c-mv64xxx.c

@@ -423,13 +423,13 @@ static int
 mv64xxx_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
 {
 	struct mv64xxx_i2c_data *drv_data = i2c_get_adapdata(adap);
-	int	i, rc = 0;
+	int	i, rc;
 
 	for (i=0; i<num; i++)
-		if ((rc = mv64xxx_i2c_execute_msg(drv_data, &msgs[i])) != 0)
-			break;
+		if ((rc = mv64xxx_i2c_execute_msg(drv_data, &msgs[i])) < 0)
+			return rc;
 
-	return rc;
+	return num;
 }
 
 static struct i2c_algorithm mv64xxx_i2c_algo = {