tree a30d72a6552bf68f3c853b81c262d799398d2862
parent ee2d04f23bbb16208045c3de545c6127aaa1ed0e
author Paulo Alcantara <pc@cjr.nz> 1638469775 -0300
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1669999272 +0100

cifs: fix missed refcounting of ipc tcon

commit 65de262a209da0951eb9bc60b3b7faf3bbffa38a upstream.

Fix missed refcounting of IPC tcon used for getting domain-based DFS
root referrals.  We want to keep it alive as long as mount is active
and can be refreshed.  For standalone DFS root referrals it wouldn't
be a problem as the client ends up having an IPC tcon for both mount
and cache.

Fixes: c88f7dcd6d64 ("cifs: support nested dfs links over reconnect")
Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>