Re: [PATCH V8 2/4 net-next] skbuff: skb supports zero-copy buffers

[David Miller]

From: Shirley Ma <mashirle@xxxxxxxxxx>
Date: Wed, 06 Jul 2011 15:22:12 -0700

> +			while (head) {
> +				put_page(head);
> +				head = (struct page *)head->private;
> +			}

Looks like you might be referencing the page after it's
release here.  I think you need something like:

			while (head) {
				struct page *next = (struct page *)head->private;
				put_page(head);
				head = next;
			}
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