error check & memset to zero

diff --git a/src/modules/rlm_attr_filter/rlm_attr_filter.c b/src/modules/rlm_attr_filter/rlm_attr_filter.c
index 015d731..5e96365 100644 (file)
--- a/src/modules/rlm_attr_filter/rlm_attr_filter.c
+++ b/src/modules/rlm_attr_filter/rlm_attr_filter.c
@@ -152,6 +152,10 @@ static int attr_filter_instantiate(CONF_SECTION *conf, void **instance)
        int rcode;
 
         inst = rad_malloc(sizeof *inst);
+       if (!inst) {
+               return -1;
+       }
+       memset(inst, 0, sizeof(*inst));
 
         if (cf_section_parse(conf, inst, module_config) < 0) {
                 free(inst);