From: Jiri Pirko <jiri@mellanox.com>
Date: Thu, 28 Dec 2017 16:52:10 +0100
Subject: net: sched: don't set extack message in case the qdisc will be
 created
Patch-mainline: v4.16-rc1
Git-commit: 8ec69574031bb8e0a19cf318c093acc871abd965
References: bsc#1109837

If the qdisc is not found here, it is going to be created. Therefore,
this is not an error path. Remove the extack message set and don't
confuse user with error message in case the qdisc was created
successfully.

Fixes: 09215598119e ("net: sched: sch_api: handle generic qdisc errors")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 net/sched/sch_api.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1400,10 +1400,8 @@ replay:
 					return -EINVAL;
 				}
 				q = qdisc_lookup(dev, tcm->tcm_handle);
-				if (!q) {
-					NL_SET_ERR_MSG(extack, "No qdisc found for specified handle");
+				if (!q)
 					goto create_n_graft;
-				}
 				if (n->nlmsg_flags & NLM_F_EXCL) {
 					NL_SET_ERR_MSG(extack, "Exclusivity flag on, cannot override");
 					return -EEXIST;