From 7d9e8931f93683e575679e41f188d3b465269f08 Mon Sep 17 00:00:00 2001 From: Gerrit Renker Date: Thu, 4 Oct 2007 14:41:26 -0700 Subject: [PATCH] [CCID2]: Remove ugly BUG_ON This removes an ugly BUG_ON which has been pointed out by Arnaldo. Instead of freezing up the machine, a `critical' message is now issued to the system log. There is potential of doing this more gracefully (eg. there are a few internal variables which could be updated despite the lack of memory), but that requires more complicated changes to the algorithm; thus a `FIXME' has been added. Signed-off-by: Gerrit Renker Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller --- net/dccp/ccids/ccid2.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/net/dccp/ccids/ccid2.c b/net/dccp/ccids/ccid2.c index 5c6b4f97a66..3e4fa6b6f25 100644 --- a/net/dccp/ccids/ccid2.c +++ b/net/dccp/ccids/ccid2.c @@ -294,12 +294,11 @@ static void ccid2_hc_tx_packet_sent(struct sock *sk, int more, unsigned int len) next = hctx->ccid2hctx_seqh->ccid2s_next; /* check if we need to alloc more space */ if (next == hctx->ccid2hctx_seqt) { - int rc; - - ccid2_pr_debug("allocating more space in history\n"); - rc = ccid2_hc_tx_alloc_seq(hctx); - BUG_ON(rc); /* XXX what do we do? */ - + if (ccid2_hc_tx_alloc_seq(hctx)) { + DCCP_CRIT("packet history - out of memory!"); + /* FIXME: find a more graceful way to bail out */ + return; + } next = hctx->ccid2hctx_seqh->ccid2s_next; BUG_ON(next == hctx->ccid2hctx_seqt); } -- 2.20.1