iio temperature/mlx90632: silence a static checker warning
This shouldn't affect runtime at all, but Smatch complains that we
should check if mlx90632_read_ambient_raw() otherwise we
"ambient_new_raw" can be uninitialized.
drivers/iio/temperature/mlx90632.c:509 mlx90632_calc_ambient_dsp105()
error: uninitialized symbol 'ambient_new_raw'.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Crt Mori <cmo@melexis.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
diff --git a/drivers/iio/temperature/mlx90632.c b/drivers/iio/temperature/mlx90632.c
index d695ab9..9851311 100644
--- a/drivers/iio/temperature/mlx90632.c
+++ b/drivers/iio/temperature/mlx90632.c
@@ -506,6 +506,8 @@ static int mlx90632_calc_ambient_dsp105(struct mlx90632_data *data, int *val)
ret = mlx90632_read_ambient_raw(data->regmap, &ambient_new_raw,
&ambient_old_raw);
+ if (ret < 0)
+ return ret;
*val = mlx90632_calc_temp_ambient(ambient_new_raw, ambient_old_raw,
PT, PR, PG, PO, Gb);
return ret;