From 15590be4648b296f8cdbcab8c90059e0e53aad14 Mon Sep 17 00:00:00 2001
From: Mark Pizzolato <mark@infocomm.com>
Date: Thu, 30 Jan 2020 04:26:36 -0800
Subject: [PATCH] ETHER: Avoid potential memory leak on network shutdown.

---
 sim_ether.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sim_ether.c b/sim_ether.c
index 4c75df70..fcc2aeb0 100644
--- a/sim_ether.c
+++ b/sim_ether.c
@@ -1940,8 +1940,15 @@ while (dev->handle) {
     /* Put buffer on free buffer list */
     request->next = dev->write_buffers;
     dev->write_buffers = request;
+    request = NULL;
     }
   }
+/* If we exited these loops with a request allocated, */
+/* avoid buffer leaking by putting it on free buffer list */
+if (request) {
+  request->next = dev->write_buffers;
+  dev->write_buffers = request;
+  }
 pthread_mutex_unlock (&dev->writer_lock);
 
 sim_debug(dev->dbit, dev->dptr, "Writer Thread Exiting\n");