[krbdev.mit.edu #7618] git commit

[Tom Yu via RT]

Fix various result checks

Correct three cases where the wrong expression was checked to see if
an allocation function returned null.

[ghudson at mit.edu: commit message, patch splitting]
[tlyu at mit.edu: omit inapplicable lib/kadm/srv/svr_principal.c change]

(back ported from commit a9ee4a040eeacab1d410ff9e4c862484b531c401)
(cherry picked from commit 2ea07b055f1eb3abbb3a7b7206ab04ff190acf84)

https://github.com/krb5/krb5/commit/d527c811296e34062c2992d2be116ba22f884497
Author: Nickolai Zeldovich <nickolai at csail.mit.edu>
Committer: Tom Yu <tlyu at mit.edu>
Commit: d527c811296e34062c2992d2be116ba22f884497
Branch: krb5-1.9
 src/plugins/kdb/db2/libdb2/hash/hash_bigkey.c      |    2 +-
 src/plugins/preauth/pkinit/pkinit_crypto_openssl.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)