From 5a0467060054ec35d45c787f29db6144aedbea77 Mon Sep 17 00:00:00 2001
From: yintao <yintao@xiaomi.com>
Date: Mon, 4 Dec 2023 11:36:30 +0800
Subject: [PATCH] sim/sim_rptun: Check if the shared memory has been allocated

Bug fix

Signed-off-by: yintao <yintao@xiaomi.com>
---
 arch/sim/src/sim/sim_rptun.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/sim/src/sim/sim_rptun.c b/arch/sim/src/sim/sim_rptun.c
index fd9cb1874f9..474d37f7bd0 100644
--- a/arch/sim/src/sim/sim_rptun.c
+++ b/arch/sim/src/sim/sim_rptun.c
@@ -102,6 +102,11 @@ sim_rptun_get_resource(struct rptun_dev_s *dev)
   priv->shmem = host_allocshmem(priv->shmemname,
                                 sizeof(*priv->shmem));
 
+  if (!priv->shmem)
+    {
+      return NULL;
+    }
+
   if (priv->master)
     {
       struct rptun_rsc_s *rsc = &priv->shmem->rsc;