From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Thu, 22 Oct 2015 16:41:20 +0000 (-0200)
Subject: i2c: imx: Use -ENXIO as error in the NACK case
X-Git-Tag: KARO-TX6UL-2015-11-03~101^2~3^2~4
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=4c0657ae432398f729c1d402bab935505a5255b5;hp=dd77f423e516293c37c2370b44fd700900409c48;p=karo-tx-linux.git

i2c: imx: Use -ENXIO as error in the NACK case

According to Documentation/i2c/fault-codes the response to a bus NACK
should be -ENXIO, so fix the error code.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---

diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index 8d46e74c720a..1e4d99da4164 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -467,7 +467,7 @@ static int i2c_imx_acked(struct imx_i2c_struct *i2c_imx)
 {
 	if (imx_i2c_read_reg(i2c_imx, IMX_I2C_I2SR) & I2SR_RXAK) {
 		dev_dbg(&i2c_imx->adapter.dev, "<%s> No ACK\n", __func__);
-		return -EIO;  /* No ACK */
+		return -ENXIO;  /* No ACK */
 	}
 
 	dev_dbg(&i2c_imx->adapter.dev, "<%s> ACK received\n", __func__);