Sibyte i2c bus driver returns non-descriptive error values. Update to return error values as defined in Documentation/i2c/fault-codes.
Signed-off-by: Guenter Roeck <[email protected]> --- v2: Return -ENXIO for missing ACK and -EIO for other errors --- drivers/i2c/busses/i2c-sibyte.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/busses/i2c-sibyte.c b/drivers/i2c/busses/i2c-sibyte.c index 3d76a18..0fe505d 100644 --- a/drivers/i2c/busses/i2c-sibyte.c +++ b/drivers/i2c/busses/i2c-sibyte.c @@ -94,7 +94,7 @@ static int smbus_xfer(struct i2c_adapter *i2c_adap, u16 addr, } break; default: - return -1; /* XXXKW better error code? */ + return -EOPNOTSUPP; } while (csr_in32(SMB_CSR(adap, R_SMB_STATUS)) & M_SMB_BUSY) @@ -104,7 +104,7 @@ static int smbus_xfer(struct i2c_adapter *i2c_adap, u16 addr, if (error & M_SMB_ERROR) { /* Clear error bit by writing a 1 */ csr_out32(M_SMB_ERROR, SMB_CSR(adap, R_SMB_STATUS)); - return -1; /* XXXKW better error code? */ + return (error & M_SMB_ERROR_TYPE) ? -EIO : -ENXIO; } if (data_bytes == 1) -- 1.7.0.87.g0901d -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
