Commit a0403be8 authored May 04, 2018 by oulijun Committed by Doug Ledford May 09, 2018

RDMA/hns: Fix the bug with NULL pointer



When the last QP of eight QPs is not exist in
hns_roce_v1_mr_free_work_fn function, the
print for qpn of hr_qp may introduce a
calltrace for NULL pointer.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

parent 79d44207

drivers/infiniband/hw/hns/hns_roce_hw_v1.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1037,7 +1037,7 @@ static void hns_roce_v1_mr_free_work_fn(struct work_struct *work)

		do {
		ret = hns_roce_v1_poll_cq(&mr_free_cq->ib_cq, ne, wc);
		if (ret < 0) {
		if (ret < 0 && hr_qp) {
		dev_err(dev,
		"(qp:0x%lx) starts, Poll cqe failed(%d) for mr 0x%x free! Remain %d cqe\n",
		hr_qp->qpn, ret, hr_mr->key, ne);