diff --git a/src/include/memrange.h b/src/include/memrange.h
index ba85bef4d9..048c28754d 100644
--- a/src/include/memrange.h
+++ b/src/include/memrange.h
@@ -75,6 +75,9 @@ static inline void range_entry_update_tag(struct range_entry *r,
 #define memranges_each_entry(r, ranges) \
 	for (r = (ranges)->entries; r != NULL; r = r->next)
 
+/* Initialize memranges structure */
+void memranges_init_empty(struct memranges *ranges);
+
 /* Initialize and fill a memranges structure according to the
  * mask and match type for all memory resources. Tag each entry with the
  * specified type. */
diff --git a/src/lib/memrange.c b/src/lib/memrange.c
index a85bc01d49..d2ffa26e99 100644
--- a/src/lib/memrange.c
+++ b/src/lib/memrange.c
@@ -228,6 +228,9 @@ static void do_action(struct memranges *ranges,
 	resource_t end;
 	resource_t begin;
 
+	if (size == 0)
+		return;
+
 	/* The addresses are aligned to 4096 bytes: the begin address is
 	 * aligned down while the end address is aligned up to be conservative
 	 * about the full range covered. */
@@ -290,11 +293,16 @@ void memranges_add_resources(struct memranges *ranges,
 	memranges_add_resources_filter(ranges, mask, match, tag, NULL);
 }
 
+void memranges_init_empty(struct memranges *ranges)
+{
+	ranges->entries = NULL;
+}
+
 void memranges_init(struct memranges *ranges,
                     unsigned long mask, unsigned long match,
                     unsigned long tag)
 {
-	ranges->entries = NULL;
+	memranges_init_empty(ranges);
 	memranges_add_resources(ranges, mask, match, tag);
 }