From 741324d73c825a8d1f2b9083a3579de0cd1e9593 Mon Sep 17 00:00:00 2001
From: yintao <yintao@xiaomi.com>
Date: Thu, 2 Jan 2025 19:24:28 +0800
Subject: [PATCH] net/rpmsg: add err handle when rpmsg_socket_unbind called

After waiting, it is necessary to check if the connection
has been disconnected

Signed-off-by: yintao <yintao@xiaomi.com>
---
 net/rpmsg/rpmsg_sockif.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/rpmsg/rpmsg_sockif.c b/net/rpmsg/rpmsg_sockif.c
index f046d667b5d..ca46fe73774 100644
--- a/net/rpmsg/rpmsg_sockif.c
+++ b/net/rpmsg/rpmsg_sockif.c
@@ -778,6 +778,10 @@ static int rpmsg_socket_connect_internal(FAR struct socket *psock)
 
       ret = net_sem_timedwait(&conn->sendsem,
                               _SO_TIMEOUT(conn->sconn.s_sndtimeo));
+      if (!conn->ept.rdev || conn->unbind)
+        {
+          ret = -ECONNRESET;
+        }
 
       if (ret < 0)
         {