diff options
Diffstat (limited to 'drivers/input/mouse/elan_i2c_core.c')
| -rw-r--r-- | drivers/input/mouse/elan_i2c_core.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c index fd5068b2542d..152d057ed87c 100644 --- a/drivers/input/mouse/elan_i2c_core.c +++ b/drivers/input/mouse/elan_i2c_core.c @@ -972,6 +972,13 @@ static int elan_probe(struct i2c_client *client, return error; } + /* Make sure there is something at this address */ + error = i2c_smbus_read_byte(client); + if (error < 0) { + dev_dbg(&client->dev, "nothing at this address: %d\n", error); + return -ENXIO; + } + /* Initialize the touchpad. */ error = elan_initialize(data); if (error) |