From ee4c7b47e46a9dea789aadb8279c8505f755b3ee Mon Sep 17 00:00:00 2001 From: Andy Grover Date: Wed, 3 Feb 2010 19:41:52 -0800 Subject: RDS: Add a warning if trying to allocate 0 sgs rds_message_alloc_sgs() only works when nents is nonzero. Signed-off-by: Andy Grover --- net/rds/message.c | 1 + 1 file changed, 1 insertion(+) (limited to 'net') diff --git a/net/rds/message.c b/net/rds/message.c index f4c3be0..1f73a73 100644 --- a/net/rds/message.c +++ b/net/rds/message.c @@ -240,6 +240,7 @@ struct scatterlist *rds_message_alloc_sgs(struct rds_message *rm, int nents) struct scatterlist *sg_ret; WARN_ON(rm->m_used_sgs + nents > rm->m_total_sgs); + WARN_ON(!nents); sg_ret = &sg_first[rm->m_used_sgs]; sg_init_table(sg_ret, nents); -- cgit v1.1