From c2a3b3cce8df1cafeda2ab03563d7e703c51a4ac Mon Sep 17 00:00:00 2001 From: Dmitry Bazhenov Date: Thu, 18 Jan 2018 05:39:21 +0000 Subject: i2c: xlp9xx: return ENXIO on slave address NACK Fix the driver violation of the common practice to return ENXIO error on a slave address NACK. Signed-off-by: Dmitry Bazhenov Signed-off-by: George Cherian Tested-by: dann frazier Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-xlp9xx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/i2c/busses') diff --git a/drivers/i2c/busses/i2c-xlp9xx.c b/drivers/i2c/busses/i2c-xlp9xx.c index b970bf8f38e5..6d78cdc5cf91 100644 --- a/drivers/i2c/busses/i2c-xlp9xx.c +++ b/drivers/i2c/busses/i2c-xlp9xx.c @@ -324,7 +324,8 @@ static int xlp9xx_i2c_xfer_msg(struct xlp9xx_i2c_dev *priv, struct i2c_msg *msg, dev_dbg(priv->dev, "transfer error %x!\n", priv->msg_err); if (priv->msg_err & XLP9XX_I2C_INTEN_BUSERR) xlp9xx_i2c_init(priv); - return -EIO; + return (priv->msg_err & XLP9XX_I2C_INTEN_NACKADDR) ? + -ENXIO : -EIO; } if (timeleft == 0) { -- cgit v1.2.3