iio: light: signedness bug in stk3310_write_raw()

"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@oracle.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c
index e79b9d89b024ed77500034811ec2e45c2f677b2f..fee4297d7c8f8e039dd1716c655deff831f01a84 100644 (file)
--- 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) {