From 2fa4f595eebf3470ac0f6d32c4958dec679958c8 Mon Sep 17 00:00:00 2001
From: Alex Forencich <alex@alexforencich.com>
Date: Wed, 4 Dec 2019 13:37:53 -0800
Subject: [PATCH] Don't crash with a null device pointer

---
 utils/mqnic.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/utils/mqnic.c b/utils/mqnic.c
index 3f4694dc4..3c3652d03 100644
--- a/utils/mqnic.c
+++ b/utils/mqnic.c
@@ -173,6 +173,9 @@ fail_alloc:
 
 void mqnic_close(struct mqnic *dev)
 {
+    if (!dev)
+        return;
+
     munmap((void *)dev->regs, dev->regs_size);
     close(dev->fd);
     free(dev);