9e8f0e shared: add NULL callback check in one more place

1 file Authored by Zbigniew Jędrzejewski-Szmek 4 years ago, Committed by Packit Service 4 years ago,
    shared: add NULL callback check in one more place
    
    Follow-up for 9f65637308.
    
    (cherry picked from commit d3d53e5cd143bf96d1eb0e254f16fa8d458d38ce)
    
    Related: #1830861
    
    patch_name: 0423-shared-add-NULL-callback-check-in-one-more-place.patch
    present_in_specfile: true
    location_in_specfile: 423
    squash_commits: true
    
        
file modified
+13 -18