1.1.8.23. osx.coreFoundation.CFError (C)
Check usage of CFErrorRef* parameters

Examples:

void test(CFErrorRef *error) {
  // warn: function accepting CFErrorRef* should have a
  // non-void return
}

int foo(CFErrorRef *error) {
  *error = 0; // warn: potential null dereference
  return 0;
}