change wifi driver to cypress

hc

2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390

 kernel/fs/notify/inotify/inotify_fsnotify.c
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@@ -64,7 +64,7 @@
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 	struct fsnotify_event *fsn_event;
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 	struct fsnotify_group *group = inode_mark->group;
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 	int ret;
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-	int len = 0;
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+	int len = 0, wd;
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 	int alloc_len = sizeof(struct inotify_event_info);
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 	struct mem_cgroup *old_memcg;
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@@ -79,6 +79,13 @@
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 	i_mark = container_of(inode_mark, struct inotify_inode_mark,
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 			      fsn_mark);
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+	/*
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+	 * We can be racing with mark being detached. Don't report event with
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+	 * invalid wd.
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+	 */
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+	wd = READ_ONCE(i_mark->wd);
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+	if (wd == -1)
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+		return 0;
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 	/*
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 	 * Whoever is interested in the event, pays for the allocation. Do not
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 	 * trigger OOM killer in the target monitoring memcg as it may have
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@@ -109,7 +116,7 @@
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 	fsn_event = &event->fse;
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 	fsnotify_init_event(fsn_event, 0);
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 	event->mask = mask;
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-	event->wd = i_mark->wd;
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+	event->wd = wd;
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 	event->sync_cookie = cookie;
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 	event->name_len = len;
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 	if (len)