Commit ee4c7b47 authored by Andy Grover's avatar Andy Grover

RDS: Add a warning if trying to allocate 0 sgs

rds_message_alloc_sgs() only works when nents is nonzero.
Signed-off-by: default avatarAndy Grover <andy.grover@oracle.com>
parent 372cd7de
...@@ -240,6 +240,7 @@ struct scatterlist *rds_message_alloc_sgs(struct rds_message *rm, int nents) ...@@ -240,6 +240,7 @@ struct scatterlist *rds_message_alloc_sgs(struct rds_message *rm, int nents)
struct scatterlist *sg_ret; struct scatterlist *sg_ret;
WARN_ON(rm->m_used_sgs + nents > rm->m_total_sgs); WARN_ON(rm->m_used_sgs + nents > rm->m_total_sgs);
WARN_ON(!nents);
sg_ret = &sg_first[rm->m_used_sgs]; sg_ret = &sg_first[rm->m_used_sgs];
sg_init_table(sg_ret, nents); sg_init_table(sg_ret, nents);
......
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