From eae33d47a797e159306567643284a98ae7428ec4 Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:37 -0700 Subject: [PATCH] IB/ipath: do not allow use of CQ entries with invalid counts Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_cq.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/ipath/ipath_cq.c b/drivers/infiniband/hw/ipath/ipath_cq.c index 3c4c198a4514..049221bc590e 100644 --- a/drivers/infiniband/hw/ipath/ipath_cq.c +++ b/drivers/infiniband/hw/ipath/ipath_cq.c @@ -172,7 +172,7 @@ struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries, struct ipath_cq_wc *wc; struct ib_cq *ret; - if (entries > ib_ipath_max_cqes) { + if (entries < 1 || entries > ib_ipath_max_cqes) { ret = ERR_PTR(-EINVAL); goto done; } @@ -324,6 +324,11 @@ int ipath_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata) u32 head, tail, n; int ret; + if (cqe < 1 || cqe > ib_ipath_max_cqes) { + ret = -EINVAL; + goto bail; + } + /* * Need to use vmalloc() if we want to support large #s of entries. */ -- 2.20.1