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iio: adis16400: Fix an error code in adis16400_initial_setup()

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This is to silence a new Smatch warning:

    drivers/iio/imu/adis16400.c:492 adis16400_initial_setup()
    warn: sscanf doesn't return error codes

If the condition "if (st->variant->flags & ADIS16400_HAS_SLOW_MODE) {"
is false then we return 1 instead of returning 0 and probe will fail.

Fixes: 72a868b38b ("iio: imu: check sscanf return value")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/YCwgFb3JVG6qrlQ+@mwanda
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Dan Carpenter 2021-02-16 22:42:13 +03:00 • committed by Jonathan Cameron
parent be24c65e9f
commit a71266e454
1 changed files with 1 additions and 2 deletions
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3
drivers/iio/imu/adis16400.c
View file

@ -462,8 +462,7 @@ static int adis16400_initial_setup(struct iio_dev *indio_dev)
if (ret)
goto err_ret;
ret = sscanf(indio_dev->name, "adis%u\n", &device_id);
if (ret != 1) {
if (sscanf(indio_dev->name, "adis%u\n", &device_id) != 1) {
ret = -EINVAL;
goto err_ret;
}