From 3113b446f126635ec63029e6829eba51c4d4437e Mon Sep 17 00:00:00 2001
From: wuzhouhui <wuzhouhui@kingsoft.com>
Date: Tue, 14 Aug 2018 19:56:50 +0800
Subject: [PATCH] vhost: return more appropriate errno if controller is still
 in use

Change-Id: I7716f1748803872cac85e296d60747752ca046f4
Signed-off-by: wuzhouhui <wuzhouhui@kingsoft.com>
Reviewed-on: https://review.gerrithub.io/422273
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
---
 lib/vhost/vhost.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/vhost/vhost.c b/lib/vhost/vhost.c
index ef6a227a0b..1120477dd8 100644
--- a/lib/vhost/vhost.c
+++ b/lib/vhost/vhost.c
@@ -770,7 +770,7 @@ spdk_vhost_dev_unregister(struct spdk_vhost_dev *vdev)
 {
 	if (vdev->vid != -1) {
 		SPDK_ERRLOG("Controller %s has still valid connection.\n", vdev->name);
-		return -ENODEV;
+		return -EBUSY;
 	}
 
 	if (vdev->registered && rte_vhost_driver_unregister(vdev->path) != 0) {