From 8f2d776bd0490156170c15c368c51416dd08c3d4 Mon Sep 17 00:00:00 2001
From: Dongsu Park <dongsu@dpark.io>
Date: Wed, 28 May 2025 17:12:57 +0200
Subject: [PATCH] Potential fix for code scanning alert no. 3: Unsigned
 difference expression compared to zero

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
---
 src/update_engine/extent_writer.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/update_engine/extent_writer.cc b/src/update_engine/extent_writer.cc
index c28956b..1062574 100644
--- a/src/update_engine/extent_writer.cc
+++ b/src/update_engine/extent_writer.cc
@@ -18,7 +18,7 @@ bool DirectExtentWriter::Write(const void* bytes, size_t count) {
     return true;
   const char* c_bytes = reinterpret_cast<const char*>(bytes);
   size_t bytes_written = 0;
-  while (count - bytes_written > 0) {
+  while (bytes_written < count) {
     TEST_AND_RETURN_FALSE(next_extent_index_ < extents_.size());
     uint64_t bytes_remaining_next_extent =
         extents_[next_extent_index_].num_blocks() * block_size_ -