From: YANG LI <redacted>
Date: Wed, 30 Dec 2020 14:07:30 +0800

The warning was because of the following line in function
liquidio_set_fec():

retval = wait_for_sc_completion_timeout(oct, sc, 0);
    if (retval)
	return (-EIO);

If this statement is not true, retval must be 0 and not updated
later. So, It is better to return 0 directly.

Signed-off-by: YANG LI <redacted>
Reported-by: Abaci <redacted>

Maybe you can remove the rest of the 'retval' usage in this function
and even the variable itself?

Thanks.