diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-02-22 18:35:18 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-02-22 18:35:18 -0800 |
commit | f81f213850ca84b3d5e59e17d17acb2ecfc24076 (patch) | |
tree | 43761e839a5d5640ecfec7490fb102865337965d /drivers/char | |
parent | e913a8cdc297d51c832bb8e9914333b6ae3fe6ef (diff) | |
parent | fc26067c7417e7fafed7bcc97bda155d91988734 (diff) |
Merge tag 'for-linus-5.12-1' of git://github.com/cminyard/linux-ipmi
Pull IPMI update from Corey Minyard:
"Only one change, but it's required for other things, so it needs to go
in"
* tag 'for-linus-5.12-1' of git://github.com/cminyard/linux-ipmi:
ipmi: remove open coded version of SMBus block write
Diffstat (limited to 'drivers/char')
-rw-r--r-- | drivers/char/ipmi/ipmb_dev_int.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/char/ipmi/ipmb_dev_int.c b/drivers/char/ipmi/ipmb_dev_int.c index 382b28f1cf2f..49b8f22fdcf0 100644 --- a/drivers/char/ipmi/ipmb_dev_int.c +++ b/drivers/char/ipmi/ipmb_dev_int.c @@ -137,7 +137,7 @@ static ssize_t ipmb_write(struct file *file, const char __user *buf, { struct ipmb_dev *ipmb_dev = to_ipmb_dev(file); u8 rq_sa, netf_rq_lun, msg_len; - union i2c_smbus_data data; + struct i2c_client *temp_client; u8 msg[MAX_MSG_LEN]; ssize_t ret; @@ -160,21 +160,21 @@ static ssize_t ipmb_write(struct file *file, const char __user *buf, } /* - * subtract rq_sa and netf_rq_lun from the length of the msg passed to - * i2c_smbus_xfer + * subtract rq_sa and netf_rq_lun from the length of the msg. Fill the + * temporary client. Note that its use is an exception for IPMI. */ msg_len = msg[IPMB_MSG_LEN_IDX] - SMBUS_MSG_HEADER_LENGTH; - if (msg_len > I2C_SMBUS_BLOCK_MAX) - msg_len = I2C_SMBUS_BLOCK_MAX; + temp_client = kmemdup(ipmb_dev->client, sizeof(*temp_client), GFP_KERNEL); + if (!temp_client) + return -ENOMEM; + + temp_client->addr = rq_sa; - data.block[0] = msg_len; - memcpy(&data.block[1], msg + SMBUS_MSG_IDX_OFFSET, msg_len); - ret = i2c_smbus_xfer(ipmb_dev->client->adapter, rq_sa, - ipmb_dev->client->flags, - I2C_SMBUS_WRITE, netf_rq_lun, - I2C_SMBUS_BLOCK_DATA, &data); + ret = i2c_smbus_write_block_data(temp_client, netf_rq_lun, msg_len, + msg + SMBUS_MSG_IDX_OFFSET); + kfree(temp_client); - return ret ? : count; + return ret < 0 ? ret : count; } static __poll_t ipmb_poll(struct file *file, poll_table *wait) |