diff options
Diffstat (limited to 'drivers/staging/iio/addac/adt7316-i2c.c')
| -rw-r--r-- | drivers/staging/iio/addac/adt7316-i2c.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/staging/iio/addac/adt7316-i2c.c b/drivers/staging/iio/addac/adt7316-i2c.c index 856bcfa60c6c..473e5e34ec00 100644 --- a/drivers/staging/iio/addac/adt7316-i2c.c +++ b/drivers/staging/iio/addac/adt7316-i2c.c @@ -30,6 +30,10 @@ static int adt7316_i2c_read(void *client, u8 reg, u8 *data) } ret = i2c_smbus_read_byte(client); + + if (!ret) + return -EIO; + if (ret < 0) { dev_err(&cl->dev, "I2C read error\n"); return ret; |