krb5 commit: Fix error check in krb5_ldap_parse_principal_name

[Greg Hudson]

https://github.com/krb5/krb5/commit/b6810da129512b6d0200580d78d22d38cc214e21
commit b6810da129512b6d0200580d78d22d38cc214e21
Author: Lukas Slebodnik <lslebodn at redhat.com>
Date:   Sat Jun 21 17:09:31 2014 +0200

    Fix error check in krb5_ldap_parse_principal_name
    
    Test the correct variable for NULL to detect a strdup failure.
    
    [ghudson at mit.edu: clarified commit message]

 src/plugins/kdb/ldap/libkdb_ldap/ldap_principal.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/plugins/kdb/ldap/libkdb_ldap/ldap_principal.c b/src/plugins/kdb/ldap/libkdb_ldap/ldap_principal.c
index 21695a9..44bf339 100644
--- a/src/plugins/kdb/ldap/libkdb_ldap/ldap_principal.c
+++ b/src/plugins/kdb/ldap/libkdb_ldap/ldap_principal.c
@@ -412,7 +412,7 @@ krb5_ldap_parse_principal_name(char *i_princ_name, char **o_princ_name)
     at_rlm_name = strrchr(i_princ_name, '@');
     if (!at_rlm_name) {
         *o_princ_name = strdup(i_princ_name);
-        if (!o_princ_name)
+        if (!*o_princ_name)
             return ENOMEM;
     } else {
         k5_buf_init_dynamic(&buf);