diff options
| -rw-r--r-- | drivers/i2c/busses/i2c-rtl9300.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-rtl9300.c b/drivers/i2c/busses/i2c-rtl9300.c index e064e8a4a1f0..568495720810 100644 --- a/drivers/i2c/busses/i2c-rtl9300.c +++ b/drivers/i2c/busses/i2c-rtl9300.c @@ -281,6 +281,10 @@ static int rtl9300_i2c_smbus_xfer(struct i2c_adapter *adap, u16 addr, unsigned s ret = rtl9300_i2c_reg_addr_set(i2c, command, 1); if (ret) goto out_unlock; + if (data->block[0] < 1 || data->block[0] > I2C_SMBUS_BLOCK_MAX) { + ret = -EINVAL; + goto out_unlock; + } ret = rtl9300_i2c_config_xfer(i2c, chan, addr, data->block[0]); if (ret) goto out_unlock; |