diff options
| 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-sis630.c | |
| parent | fa63cd56d2f09806169307d761e8f430e23bc09b (diff) | |
| download | talos-obmc-linux-ac7fc4fb2b6a126af8d07f46500440c9641976cf.tar.gz talos-obmc-linux-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-sis630.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-sis630.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/i2c/busses/i2c-sis630.c b/drivers/i2c/busses/i2c-sis630.c index c4cc5eddf50d..d7e6ff3e0187 100644 --- a/drivers/i2c/busses/i2c-sis630.c +++ b/drivers/i2c/busses/i2c-sis630.c @@ -356,7 +356,8 @@ static s32 sis630_access(struct i2c_adapter *adap, u16 addr, size = SIS630_BLOCK_DATA; return sis630_block_data(adap, data, read_write); default: - printk("Unsupported SMBus operation\n"); + dev_warn(&adap->dev, "Unsupported transaction %d\n", + size); return -EOPNOTSUPP; } @@ -378,8 +379,6 @@ static s32 sis630_access(struct i2c_adapter *adap, u16 addr, case SIS630_WORD_DATA: data->word = sis630_read(SMB_BYTE) + (sis630_read(SMB_BYTE + 1) << 8); break; - default: - return -EOPNOTSUPP; } return 0; |
