iio: ltr501: Fix proximity threshold boundary check

Currently, proximity sensor boundary check is done
inside the switch block but outside the case
statement.Since this code will never get executed,
moved the check outside the switch case statement.

867 case IIO_PROXIMITY:
868 switch (dir) {
// Following line has been moved outside the switch block.
869 if (val > LTR501_PS_THRESH_MASK)
870 return -EINVAL;
871 case IIO_EV_DIR_RISING:

Signed-off-by: Kuppuswamy Sathyanarayanan <[e-mail]>
Signed-off-by: Jonathan Cameron <[e-mail]>

drivers/iio/light/ltr501.c

···
 			return -EINVAL;
 		}
 	case IIO_PROXIMITY:
-		switch (dir) {
 		if (val > LTR501_PS_THRESH_MASK)
 			return -EINVAL;
+		switch (dir) {
 		case IIO_EV_DIR_RISING:
 			mutex_lock(&data->lock_ps);
 			ret = regmap_bulk_write(data->regmap,