smb: client: fix incomplete backport in cfids_invalidation_worker()

The previous commit bdb596ceb4b7 ("smb: client: fix potential UAF in
smb2_close_cached_fid()") was an incomplete backport and missed one
kref_put() call in cfids_invalidation_worker() that should have been
converted to close_cached_dir().

Fixes: 065bd62 ("smb: client: fix potential UAF in smb2_close_cached_fid()")"
Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: hac-v

fs/smb/client/cached_dir.c

@@ -727,7 +727,7 @@ static void cfids_invalidation_worker(struct work_struct *work)
 	list_for_each_entry_safe(cfid, q, &entry, entry) {
 		list_del(&cfid->entry);
 		/* Drop the ref-count acquired in invalidate_all_cached_dirs */
-		kref_put(&cfid->refcount, smb2_close_cached_fid);
+		close_cached_dir(cfid);
 	}
 }