add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/kernel/watch_queue.c
..
..
@@ -274,6 +274,7 @@
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 	if (ret < 0)
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 		goto error;
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+	ret = -ENOMEM;
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 	pages = kcalloc(sizeof(struct page *), nr_pages, GFP_KERNEL);
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 	if (!pages)
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 		goto error;