diff options
| -rw-r--r-- | drivers/i2c/busses/i2c-ismt.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-ismt.c b/drivers/i2c/busses/i2c-ismt.c index c16157ee8c52..6078fa0c0d48 100644 --- a/drivers/i2c/busses/i2c-ismt.c +++ b/drivers/i2c/busses/i2c-ismt.c @@ -528,6 +528,9 @@ static int ismt_access(struct i2c_adapter *adap, u16 addr, case I2C_SMBUS_BLOCK_PROC_CALL: dev_dbg(dev, "I2C_SMBUS_BLOCK_PROC_CALL\n"); + if (data->block[0] > I2C_SMBUS_BLOCK_MAX) + return -EINVAL; + dma_size = I2C_SMBUS_BLOCK_MAX; desc->tgtaddr_rw = ISMT_DESC_ADDR_RW(addr, 1); desc->wr_len_cmd = data->block[0] + 1; |