Merge tag '9p-for-5.4' of git://github.com/martinetd/linux

Pull 9p updates from Dominique Martinet:
 "Some of the usual small fixes and cleanup.

  Small fixes all around:
   - avoid overlayfs copy-up for PRIVATE mmaps
   - KUMSAN uninitialized warning for transport error
   - one syzbot memory leak fix in 9p cache
   - internal API cleanup for v9fs_fill_super"

* tag '9p-for-5.4' of git://github.com/martinetd/linux:
  9p/vfs_super.c: Remove unused parameter data in v9fs_fill_super
  9p/cache.c: Fix memory leak in v9fs_cache_session_get_cookie
  9p: Transport error uninitialized
  9p: avoid attaching writeback_fid on mmap with type PRIVATE

net/9p/client.c

@@ -281,6 +281,7 @@ p9_tag_alloc(struct p9_client *c, int8_t type, unsigned int max_size)
 
 	p9pdu_reset(&req->tc);
 	p9pdu_reset(&req->rc);
+	req->t_err = 0;
 	req->status = REQ_STATUS_ALLOC;
 	init_waitqueue_head(&req->wq);
 	INIT_LIST_HEAD(&req->req_list);