diff options
Diffstat (limited to 'drivers/media/dvb-frontends/s5h1420.c')
| -rw-r--r-- | drivers/media/dvb-frontends/s5h1420.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/media/dvb-frontends/s5h1420.c b/drivers/media/dvb-frontends/s5h1420.c index e2fec9ebf947..93eeaf7118fd 100644 --- a/drivers/media/dvb-frontends/s5h1420.c +++ b/drivers/media/dvb-frontends/s5h1420.c @@ -836,9 +836,16 @@ static u32 s5h1420_tuner_i2c_func(struct i2c_adapter *adapter) static int s5h1420_tuner_i2c_tuner_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msg[], int num) { struct s5h1420_state *state = i2c_get_adapdata(i2c_adap); - struct i2c_msg m[1 + num]; + struct i2c_msg m[3]; u8 tx_open[2] = { CON_1, state->CON_1_val | 1 }; /* repeater stops once there was a stop condition */ + if (1 + num > ARRAY_SIZE(m)) { + printk(KERN_WARNING + "%s: i2c xfer: num=%d is too big!\n", + KBUILD_MODNAME, num); + return -EOPNOTSUPP; + } + memset(m, 0, sizeof(struct i2c_msg) * (1 + num)); m[0].addr = state->config->demod_address; @@ -847,7 +854,7 @@ static int s5h1420_tuner_i2c_tuner_xfer(struct i2c_adapter *i2c_adap, struct i2c memcpy(&m[1], msg, sizeof(struct i2c_msg) * num); - return i2c_transfer(state->i2c, m, 1+num) == 1 + num ? num : -EIO; + return i2c_transfer(state->i2c, m, 1 + num) == 1 + num ? num : -EIO; } static struct i2c_algorithm s5h1420_tuner_i2c_algo = { |