(krb5_parse_name): remember to free realm in case of error

Coverity, NetBSD CID#1883


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@17041 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/krb5/principal.c

@@ -98,7 +98,7 @@ krb5_parse_name(krb5_context context,
 {
     krb5_error_code ret;
     heim_general_string *comp;
-    heim_general_string realm;
+    heim_general_string realm = NULL;
     int ncomp;
 
     const char *p;
@@ -225,6 +225,7 @@ exit:
 	free(comp[--n]);
     }
     free(comp);
+    free(realm);
     free(s);
     return ret;
 }