Null checks on ptr frees;

[dccutrig]

No description provided.

[codecov-commenter]

Codecov Report

Merging #193 (2e3b2be) into dev (7b8637e) will decrease coverage by 0.01%.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##              dev     #193      +/-   ##
==========================================
- Coverage   85.55%   85.54%   -0.01%     
==========================================
  Files          32       32              
  Lines        7866     7861       -5     
==========================================
- Hits         6730     6725       -5     
  Misses       1136     1136              

Files Changed	Coverage Δ
...gcrypt/cryptography_interface_libgcrypt.template.c	62.36% <ø> (-0.09%)	⬇️
src/core/crypto_tc.c	84.32% <33.33%> (-0.10%)	⬇️