Coverity fixes
Fixes https://scan5.scan.coverity.com/#/project-view/62507/10222?selectedIssue=
1643042
Fixes https://scan5.scan.coverity.com/#/project-view/62507/10222?selectedIssue=
1643047
Fixes https://scan5.scan.coverity.com/#/project-view/62507/10222?selectedIssue=
1643089
Fixes https://scan5.scan.coverity.com/#/project-view/62507/10222?selectedIssue=
1643091
Fixes https://scan5.scan.coverity.com/#/project-view/62507/10222?selectedIssue=
1643095
Reviewed-by: Paul Dale <ppzgs1@gmail.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/26845)