From f7ef08cdc1a5c2844ffed3a54f4b6e33f3d2450e Mon Sep 17 00:00:00 2001
From: Xiang Xiao <xiaoxiang@xiaomi.com>
Date: Sat, 22 Feb 2020 18:12:37 +0800
Subject: [PATCH] net/usrsock: Don't return -ESHUTDOWN even
 usrsockdev_is_opened return false

since usrsock_conn_s::resp::result contain more detailed info and fix the below error in usrsocktest:
Testing group "WakeWithSignal" =>
	[TEST ASSERT FAILED!]
		In function "do_usrsock_blocking_connect_thread":
		line 200: Assertion `(ssize_t)((*get_errno_ptr())) == (ssize_t)((test_abort ? 113 : 4))' failed.
			got value: 110
			should be: 113
	[TEST ASSERT FAILED!]
		In function "do_usrsock_blocking_connect_thread":
		line 200: Assertion `(ssize_t)((*get_errno_ptr())) == (ssize_t)((test_abort ? 113 : 4))' failed.
			got value: 110
			should be: 113
	[TEST ASSERT FAILED!]
		In function "do_usrsock_blocking_connect_thread":
		line 200: Assertion `(ssize_t)((*get_errno_ptr())) == (ssize_t)((test_abort ? 113 : 4))' failed.
			got value: 110
			should be: 113
	[TEST ASSERT FAILED!]
		In function "do_wake_test":
		line 567: Assertion `(bool)((usrsocktest_test_failed)) == (bool)(false)' failed.
			got value: 1
			should be: 0
	Group "WakeWithSignal": [FAILED]
---
 net/usrsock/usrsock_dev.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/net/usrsock/usrsock_dev.c b/net/usrsock/usrsock_dev.c
index 9f1f21bff5..a557e99218 100644
--- a/net/usrsock/usrsock_dev.c
+++ b/net/usrsock/usrsock_dev.c
@@ -1155,7 +1155,6 @@ int usrsockdev_do_request(FAR struct usrsock_conn_s *conn,
 {
   FAR struct usrsockdev_s *dev = conn->dev;
   FAR struct usrsock_request_common_s *req_head = iov[0].iov_base;
-  int ret = OK;
 
   if (!dev)
     {
@@ -1207,7 +1206,6 @@ int usrsockdev_do_request(FAR struct usrsock_conn_s *conn,
     {
       ninfo("usockid=%d; daemon abruptly closed /dev/usrsock.\n",
             conn->usockid);
-      ret = -ESHUTDOWN;
     }
 
   /* Free request line for next command. */
@@ -1216,7 +1214,7 @@ int usrsockdev_do_request(FAR struct usrsock_conn_s *conn,
 
   --dev->req.nbusy; /* net_lock held. */
 
-  return ret;
+  return OK;
 }
 
 /****************************************************************************