Hello Kuppuswamy Sathyanarayanan,
The patch 7ac702b3144b: "iio: ltr501: Add interrupt support" from Apr
19, 2015, leads to the following static checker warning:
drivers/iio/light/ltr501.c:869 ltr501_write_thresh()
info: ignoring unreachable code.
drivers/iio/light/ltr501.c
867 case IIO_PROXIMITY:
868 switch (dir) {
869 if (val > LTR501_PS_THRESH_MASK)
870 return -EINVAL;
Probably this code should be outside of this switch (dir) statement?
871 case IIO_EV_DIR_RISING:
872 mutex_lock(&data->lock_ps);
873 ret = regmap_bulk_write(data->regmap,
874 LTR501_PS_THRESH_UP,
875 &val, 2);
876 mutex_unlock(&data->lock_ps);
877 return ret;
878 case IIO_EV_DIR_FALLING:
879 mutex_lock(&data->lock_ps);
880 ret = regmap_bulk_write(data->regmap,
881 LTR501_PS_THRESH_LOW,
882 &val, 2);
883 mutex_unlock(&data->lock_ps);
884 return ret;
885 default:
886 return -EINVAL;
887 }
888 default:
889 return -EINVAL;
890 }
891
892 return -EINVAL;
893 }
regards,
dan carpenter
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