stefanberger / libtpms / 1148
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Stefan Berger 
tpm12: Initialize some variables for gcc ppc64el compiler

gcc (Ubuntu 9.2.1-21ubuntu1) 9.2.1 20191130

The gcc compiler on Ubuntu Focal reports several false positives for
potentially uninitialized variables:

tpm12/tpm_session.c: In function ‘TPM_Process_SaveContext’:
tpm12/tpm_session.c:3229:19: error: ‘tpm_auth_session_data’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
 3229 |      returnCode = TPM_AuthSessionData_Store(&r1ContextSensitive, tpm_auth_session_data);
      |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

tpm12/tpm_delegate.c: In function ‘TPM_Process_DelegateManage’:
tpm12/tpm_delegate.c:1787:49: error: ‘familyRow’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
 1787 |  if ((opCode != TPM_FAMILY_CREATE) && (familyRow->flags & TPM_DELEGATE_ADMIN_LOCK)) {
      |                                        ~~~~~~~~~^~~~~~~
tpm12/tpm_delegate.c: In function ‘TPM_Process_DelegateUpdateVerification’:
tpm12/tpm_delegate.c:3575:48: error: ‘d1DelegateTableRow’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
 3575 |      d1DelegateTableRow->pub.verificationCount = familyRow->verificationCount;
      |      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

All of the variables are initialize under the same condition as they are
accessed.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>

27533 of 36063 relevant lines covered (76.35%)

81446.69 hits per line

Jobs
ID Job ID Ran Files Coverage
2 1148.2 (CONFIG="--with-openssl --prefix=/usr --with-tpm2 --enable-test-coverage" TARGET="install" NPROC="nproc") 0
76.35
 Travis Job 1148.2
Source Files on build 1148
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