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| author | Jean Delvare <khali@linux-fr.org> | 2008-07-14 22:38:25 +0200 |
|---|---|---|
| committer | Jean Delvare <khali@mahadeva.delvare> | 2008-07-14 22:38:25 +0200 |
| commit | ac7fc4fb2b6a126af8d07f46500440c9641976cf (patch) | |
| tree | 1ba7a6b229699f6d69cfe3f1bd74c020e952e16b /drivers/i2c/busses/i2c-taos-evm.c | |
| parent | fa63cd56d2f09806169307d761e8f430e23bc09b (diff) | |
| download | linux-stable-ac7fc4fb2b6a126af8d07f46500440c9641976cf.tar.gz linux-stable-ac7fc4fb2b6a126af8d07f46500440c9641976cf.tar.bz2 linux-stable-ac7fc4fb2b6a126af8d07f46500440c9641976cf.zip | |
i2c: Consistently reject unsupported transactions
Many PC SMBus host controller drivers don't properly handle the case
where they are requested to achieve a transaction they do not support.
Update them so that the consistently print a warning message and
return a single error value in this case.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/i2c/busses/i2c-taos-evm.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-taos-evm.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/i2c/busses/i2c-taos-evm.c b/drivers/i2c/busses/i2c-taos-evm.c index de9db49e54d9..224aa12ee7c8 100644 --- a/drivers/i2c/busses/i2c-taos-evm.c +++ b/drivers/i2c/busses/i2c-taos-evm.c @@ -96,9 +96,8 @@ static int taos_smbus_xfer(struct i2c_adapter *adapter, u16 addr, sprintf(p, "$%02X", command); break; default: - dev_dbg(&adapter->dev, "Unsupported transaction size %d\n", - size); - return -EINVAL; + dev_warn(&adapter->dev, "Unsupported transaction %d\n", size); + return -EOPNOTSUPP; } /* Send the transaction to the TAOS EVM */ |