krb5 commit [krb5-1.14]: Handle errors from curs_init in db2 back end

[Tom Yu]

https://github.com/krb5/krb5/commit/2e64212867244b659c4a5054ec9a6d93eeddec3e
commit 2e64212867244b659c4a5054ec9a6d93eeddec3e
Author: Tom Yu <tlyu at mit.edu>
Date:   Thu Aug 11 16:27:33 2016 -0400

    Handle errors from curs_init in db2 back end
    
    ctx_iterate could ignore errors from curs_init.  Actually pass them up
    to the caller.
    
    (cherry picked from commit da4447bd3a9e12485cf2e6cc925dcc386585a0c1)
    
    ticket: 8473
    version_fixed: 1.14.4

 src/plugins/kdb/db2/kdb_db2.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/src/plugins/kdb/db2/kdb_db2.c b/src/plugins/kdb/db2/kdb_db2.c
index 625a9d7..e97b841 100644
--- a/src/plugins/kdb/db2/kdb_db2.c
+++ b/src/plugins/kdb/db2/kdb_db2.c
@@ -1102,6 +1102,8 @@ ctx_iterate(krb5_context context, krb5_db2_context *dbc,
     iter_curs curs;
 
     retval = curs_init(&curs, context, dbc, iterflags);
+    if (retval)
+        return retval;
     dbret = curs_start(&curs);
     while (dbret == 0) {
         retval = curs_run_cb(&curs, func, func_arg);