"index" needs to be signed for the error handling to work.
Fixes: be9e6229d676 ('iio: light: Add support for Sensortek STK3310')
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c
index e79b9d8..fee4297 100644
--- a/drivers/iio/light/stk3310.c
+++ b/drivers/iio/light/stk3310.c
@@ -370,7 +370,7 @@ static int stk3310_write_raw(struct iio_dev *indio_dev,
int val, int val2, long mask)
{
int ret;
- unsigned int index;
+ int index;
struct stk3310_data *data = iio_priv(indio_dev);
switch (mask) {
--
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