i2c-i801: Properly report bus arbitration loss

Bit BUS_ERR of the status register means that the ICH host controller
lost the arbitration. Report this event as such.

Signed-off-by: Jean Delvare <khali@linux-fr.org>

1 files changed, 4 insertions, 6 deletions

diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 965905fb5d5..614c9e4ffba 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -179,10 +179,8 @@ static int i801_transaction(int xact)
         }
 
         if (temp & SMBHSTSTS_BUS_ERR) {
-                result = -EIO;
-                dev_err(&I801_dev->dev, "Bus collision! SMBus may be locked "
-                        "until next hard reset. (sorry!)\n");
-                /* Clock stops and slave is stuck in mid-transmission */
+                result = -EAGAIN;
+                dev_dbg(&I801_dev->dev, "Lost arbitration\n");
         }
 
         if (temp & SMBHSTSTS_DEV_ERR) {
@@ -339,8 +337,8 @@ static int i801_block_transaction_byte_by_byte(union i2c_smbus_data *data,
                         dev_dbg(&I801_dev->dev,
                                 "Error: Failed bus transaction\n");
                 } else if (temp & SMBHSTSTS_BUS_ERR) {
-                        result = -EIO;
-                        dev_err(&I801_dev->dev, "Bus collision!\n");
+                        result = -EAGAIN;
+                        dev_dbg(&I801_dev->dev, "Lost arbitration\n");
                 } else if (temp & SMBHSTSTS_DEV_ERR) {
                         result = -ENXIO;
                         dev_dbg(&I801_dev->dev, "Error: no response!\n");