Modify bug

[yuanyu-ghca]

What this PR does / why we need it:

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #

Special notes for your reviewer:

Release note:

[codecov]

Codecov Report

Merging #568 (1b5246f) into emc_vnx_block_20220529 (8e3ed34) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@                   Coverage Diff                   @@
##           emc_vnx_block_20220529     #568   +/-   ##
=======================================================
  Coverage                   71.01%   71.01%           
=======================================================
  Files                         182      182           
  Lines                       21756    21756           
  Branches                     3326     3326           
=======================================================
+ Hits                        15450    15451    +1     
  Misses                       5261     5261           
+ Partials                     1045     1044    -1     

Impacted Files	Coverage Δ
...rivers/dell_emc/vnx/vnx_block/component_handler.py	64.13% <100.00%> (ø)
delfin/drivers/fake_storage/__init__.py	94.65% <0.00%> (+0.25%)	⬆️