From: Shyam Prasad N <sprasad@microsoft.com>
Date: Thu, 9 Mar 2023 13:23:29 +0000
Subject: [PATCH] cifs: empty interface list when server doesn't support query
 interfaces
References: bsc#1012628
Patch-mainline: 6.2.9
Git-commit: 896cd316b841053f6df95ab77b5f1322c16a8e18

commit 896cd316b841053f6df95ab77b5f1322c16a8e18 upstream.

When querying server interfaces returns -EOPNOTSUPP,
clear the list of interfaces. Assumption is that multichannel
would be disabled too.

Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 fs/cifs/smb2ops.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 6a1db6ca..502b6915 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -717,7 +717,7 @@ SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon, bool in_
 	if (rc == -EOPNOTSUPP) {
 		cifs_dbg(FYI,
 			 "server does not support query network interfaces\n");
-		goto out;
+		ret_data_len = 0;
 	} else if (rc != 0) {
 		cifs_tcon_dbg(VFS, "error %d on ioctl to get interface list\n", rc);
 		goto out;
-- 
2.35.3