Taming static checker: don't memcpy zero length

diff --git a/lib/attrs.h b/lib/attrs.h
index c622fc0aa637524555c0dab267ef6ea523e9cd08..ae9de9c642813689e07a6f527f97fecdb5c10ef7 100644 (file)
--- a/lib/attrs.h
+++ b/lib/attrs.h
@@ -33,7 +33,8 @@ static inline struct adata *
 lp_store_adata(struct linpool *pool, const void *buf, uint len)
 {
   struct adata *ad = lp_alloc_adata(pool, len);
-  memcpy(ad->data, buf, len);
+  if (len)
+    memcpy(ad->data, buf, len);
   return ad;
 }