From c75d721c761ad0f2d8725c40af9e4f376efefd24 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Wed, 2 Nov 2005 18:55:00 +1100 Subject: [PATCH] [NET]: Fix zero-size datagram reception The recent rewrite of skb_copy_datagram_iovec broke the reception of zero-size datagrams. This patch fixes it. Signed-off-by: Herbert Xu Signed-off-by: Arnaldo Carvalho de Melo --- net/core/datagram.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/core/datagram.c b/net/core/datagram.c index 81987df536eb..d219435d086c 100644 --- a/net/core/datagram.c +++ b/net/core/datagram.c @@ -213,6 +213,10 @@ int skb_copy_datagram_iovec(const struct sk_buff *skb, int offset, { int i, err, fraglen, end = 0; struct sk_buff *next = skb_shinfo(skb)->frag_list; + + if (!len) + return 0; + next_skb: fraglen = skb_headlen(skb); i = -1; -- 2.20.1