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

stable inclusion
from stable-5.10.26
commit 06c281c23acedf71e8fabd1a7b19d46313392d0c
bugzilla: 51363

--------------------------------

commit a71266e4 upstream.

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: 72a868b3 ("iio: imu: check sscanf return value")
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/YCwgFb3JVG6qrlQ+@mwandaSigned-off-by: NJonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Acked-by: N  Weilong Chen <chenweilong@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/iio/imu/adis16400.c

@@ -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;
 		}