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Commit eae33d47 authored by Bryan O'Sullivan's avatar Bryan O'Sullivan Committed by Roland Dreier
Browse files

IB/ipath: do not allow use of CQ entries with invalid counts 



Signed-off-by: default avatarBryan O'Sullivan <bryan.osullivan@qlogic.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 98341f26

drivers/infiniband/hw/ipath/ipath_cq.c

+6 −1
Original line number Diff line number Diff line
@@ -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.

	 */