diff options
Diffstat (limited to 'drivers/staging/iio/light/tsl2583.c')
| -rw-r--r-- | drivers/staging/iio/light/tsl2583.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/staging/iio/light/tsl2583.c b/drivers/staging/iio/light/tsl2583.c index 3100d960fe2c..da2a2ff4cdb9 100644 --- a/drivers/staging/iio/light/tsl2583.c +++ b/drivers/staging/iio/light/tsl2583.c @@ -378,6 +378,15 @@ static int taos_als_calibrate(struct iio_dev *indio_dev) dev_err(&chip->client->dev, "taos_als_calibrate failed to get lux\n"); return lux_val; } + + /* Avoid division by zero of lux_value later on */ + if (lux_val == 0) { + dev_err(&chip->client->dev, + "%s: lux_val of 0 will produce out of range trim_value\n", + __func__); + return -ENODATA; + } + gain_trim_val = (unsigned int) (((chip->taos_settings.als_cal_target) * chip->taos_settings.als_gain_trim) / lux_val); |