diff --git a/sys/cam/scsi/scsi_enc_ses.c b/sys/cam/scsi/scsi_enc_ses.c
index 2e510301d30d..213fad911c33 100644
--- a/sys/cam/scsi/scsi_enc_ses.c
+++ b/sys/cam/scsi/scsi_enc_ses.c
@@ -567,8 +567,8 @@ ses_cache_free_elm_addlstatus(enc_softc_t *enc, enc_cache_t *cache)
 		return;
 
 	for (cur_elm = cache->elm_map,
-	     last_elm = &cache->elm_map[cache->nelms - 1];
-	     cur_elm <= last_elm; cur_elm++) {
+	     last_elm = &cache->elm_map[cache->nelms];
+	     cur_elm != last_elm; cur_elm++) {
 		ses_element_t *elmpriv;
 
 		elmpriv = cur_elm->elm_private;
@@ -598,8 +598,8 @@ ses_cache_free_elm_descs(enc_softc_t *enc, enc_cache_t *cache)
 		return;
 
 	for (cur_elm = cache->elm_map,
-	     last_elm = &cache->elm_map[cache->nelms - 1];
-	     cur_elm <= last_elm; cur_elm++) {
+	     last_elm = &cache->elm_map[cache->nelms];
+	     cur_elm != last_elm; cur_elm++) {
 		ses_element_t *elmpriv;
 
 		elmpriv = cur_elm->elm_private;
@@ -644,8 +644,8 @@ ses_cache_free_elm_map(enc_softc_t *enc, enc_cache_t *cache)
 	ses_cache_free_elm_descs(enc, cache);
 	ses_cache_free_elm_addlstatus(enc, cache);
 	for (cur_elm = cache->elm_map,
-	     last_elm = &cache->elm_map[cache->nelms - 1];
-	     cur_elm <= last_elm; cur_elm++) {
+	     last_elm = &cache->elm_map[cache->nelms];
+	     cur_elm != last_elm; cur_elm++) {
 
 		ENC_FREE_AND_NULL(cur_elm->elm_private);
 	}
@@ -717,8 +717,8 @@ ses_cache_clone(enc_softc_t *enc, enc_cache_t *src, enc_cache_t *dst)
 	dst->elm_map = ENC_MALLOCZ(dst->nelms * sizeof(enc_element_t));
 	memcpy(dst->elm_map, src->elm_map, dst->nelms * sizeof(enc_element_t));
 	for (dst_elm = dst->elm_map, src_elm = src->elm_map,
-	     last_elm = &src->elm_map[src->nelms - 1];
-	     src_elm <= last_elm; src_elm++, dst_elm++) {
+	     last_elm = &src->elm_map[src->nelms];
+	     src_elm != last_elm; src_elm++, dst_elm++) {
 
 		dst_elm->elm_private = ENC_MALLOCZ(sizeof(ses_element_t));
 		memcpy(dst_elm->elm_private, src_elm->elm_private,