diff options
Diffstat (limited to 'drivers/i2c')
-rw-r--r-- | drivers/i2c/busses/i2c-i801.c | 7 | ||||
-rw-r--r-- | drivers/i2c/busses/i2c-pxa.c | 2 | ||||
-rw-r--r-- | drivers/i2c/i2c-core-base.c | 12 |
3 files changed, 11 insertions, 10 deletions
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index a6861660cb8c..79870dd7a014 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -536,11 +536,12 @@ static int i801_block_transaction_by_block(struct i801_priv *priv, if (read_write == I2C_SMBUS_READ || command == I2C_SMBUS_BLOCK_PROC_CALL) { - status = i801_get_block_len(priv); - if (status < 0) + len = i801_get_block_len(priv); + if (len < 0) { + status = len; goto out; + } - len = status; data->block[0] = len; inb_p(SMBHSTCNT(priv)); /* reset the data buffer index */ for (i = 0; i < len; i++) diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c index 76f79b68cef8..888ca636f3f3 100644 --- a/drivers/i2c/busses/i2c-pxa.c +++ b/drivers/i2c/busses/i2c-pxa.c @@ -324,6 +324,7 @@ static void decode_ISR(unsigned int val) decode_bits(KERN_DEBUG "ISR", isr_bits, ARRAY_SIZE(isr_bits), val); } +#ifdef CONFIG_I2C_PXA_SLAVE static const struct bits icr_bits[] = { PXA_BIT(ICR_START, "START", NULL), PXA_BIT(ICR_STOP, "STOP", NULL), @@ -342,7 +343,6 @@ static const struct bits icr_bits[] = { PXA_BIT(ICR_UR, "UR", "ur"), }; -#ifdef CONFIG_I2C_PXA_SLAVE static void decode_ICR(unsigned int val) { decode_bits(KERN_DEBUG "ICR", icr_bits, ARRAY_SIZE(icr_bits), val); diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c index ff5c486a1dbb..db0d1ac82910 100644 --- a/drivers/i2c/i2c-core-base.c +++ b/drivers/i2c/i2c-core-base.c @@ -2200,13 +2200,18 @@ static int i2c_check_for_quirks(struct i2c_adapter *adap, struct i2c_msg *msgs, * Returns negative errno, else the number of messages executed. * * Adapter lock must be held when calling this function. No debug logging - * takes place. adap->algo->master_xfer existence isn't checked. + * takes place. */ int __i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) { unsigned long orig_jiffies; int ret, try; + if (!adap->algo->master_xfer) { + dev_dbg(&adap->dev, "I2C level transfers not supported\n"); + return -EOPNOTSUPP; + } + if (WARN_ON(!msgs || num < 1)) return -EINVAL; @@ -2273,11 +2278,6 @@ int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) { int ret; - if (!adap->algo->master_xfer) { - dev_dbg(&adap->dev, "I2C level transfers not supported\n"); - return -EOPNOTSUPP; - } - /* REVISIT the fault reporting model here is weak: * * - When we get an error after receiving N bytes from a slave, |