[PATCH AUTOSEL 5.10 2/3] net: qrtr: ns: Return 0 if server port is not present

[Sasha Levin]

From: Sarannya S <quic_sarannya@xxxxxxxxxxx>

[ Upstream commit 9bf2e9165f90dc9f416af53c902be7e33930f728 ]

When a 'DEL_CLIENT' message is received from the remote, the corresponding
server port gets deleted. A DEL_SERVER message is then announced for this
server. As part of handling the subsequent DEL_SERVER message, the name-
server attempts to delete the server port which results in a '-ENOENT' error.
The return value from server_del() is then propagated back to qrtr_ns_worker,
causing excessive error prints.
To address this, return 0 from control_cmd_del_server() without checking the
return value of server_del(), since the above scenario is not an error case
and hence server_del() doesn't have any other error return value.

Signed-off-by: Sarannya Sasikumar <quic_sarannya@xxxxxxxxxxx>
Reviewed-by: Simon Horman <horms@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 net/qrtr/ns.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/qrtr/ns.c b/net/qrtr/ns.c
index 713e9940d88bb..c92dd960bfefa 100644
--- a/net/qrtr/ns.c
+++ b/net/qrtr/ns.c
@@ -577,7 +577,9 @@ static int ctrl_cmd_del_server(struct sockaddr_qrtr *from,
 	if (!node)
 		return -ENOENT;
 
-	return server_del(node, port, true);
+	server_del(node, port, true);
+
+	return 0;
 }
 
 static int ctrl_cmd_new_lookup(struct sockaddr_qrtr *from,
-- 
2.43.0