From f5f88359572d5ced8d20d348eef7b69496a75f1f Mon Sep 17 00:00:00 2001
From: BoB13-Matter <bob13wtm@gmail.com>
Date: Mon, 23 Dec 2024 14:34:40 +0900
Subject: [PATCH] Compare len instead of buf

---
 src/lib/support/BufferWriter.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib/support/BufferWriter.cpp b/src/lib/support/BufferWriter.cpp
index 5bbe5a5e722633..3f9a51fe18b815 100644
--- a/src/lib/support/BufferWriter.cpp
+++ b/src/lib/support/BufferWriter.cpp
@@ -30,7 +30,7 @@ BufferWriter & BufferWriter::Put(const void * buf, size_t len)
 {
     size_t available = Available();
 
-    if (available > 0 && buf != nullptr)
+    if (available > 0 && len > 0)
     {
         memmove(mBuf + mNeeded, buf, available < len ? available : len);
     }