[SSSD] [sssd PR#5498][comment] Covscan fixes

[abbra]

URL: https://github.com/SSSD/sssd/pull/5498
Title: #5498: Covscan fixes

abbra commented:
"""
I did receive them but had no time to fix. If you have some time, please feel free to overtake this PR. I don't think I'll have much time until maybe mid March.
"""

See the full comment at https://github.com/SSSD/sssd/pull/5498#issuecomment-789576996