From c9127715c08f1cd525a732f3c25153f2f0ed8197 Mon Sep 17 00:00:00 2001
From: Tim Wojtulewicz <tim@corelight.com>
Date: Thu, 7 Jul 2022 10:48:10 -0700
Subject: [PATCH] Avoid calling safe_realloc unnecessarily from ODesc::Grow()

---
 src/Desc.cc | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/Desc.cc b/src/Desc.cc
index e6e41f5f6f..ba5849c226 100644
--- a/src/Desc.cc
+++ b/src/Desc.cc
@@ -373,10 +373,15 @@ void ODesc::AddBytesRaw(const void* bytes, unsigned int n)
 
 void ODesc::Grow(unsigned int n)
 	{
+	bool size_changed = false;
 	while ( offset + n + SLOP >= size )
+		{
 		size *= 2;
+		size_changed = true;
+		}
 
-	base = util::safe_realloc(base, size);
+	if ( size_changed )
+		base = util::safe_realloc(base, size);
 	}
 
 void ODesc::Clear()