Re: [PATCH] RDMA/hns: return 0 rather than return a garbage status value

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Thanks,  Colin Ian King

Acked-by: Wei Hu (Xavier) <xavier.huwei@xxxxxxxxxx>

On 2017/9/30 4:13, Colin King wrote:
From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

For the case where hr_qp->state == IB_QPS_RESET, an uninitialized
value in ret is being returned by function hns_roce_v2_query_qp.
Fix this by setting ret to 0 for this specific return condition.

Detected by CoverityScan, CID#1457203 ("Unitialized scalar variable")

Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
  drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 1 +
  1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 4870b51caab9..791dae72e775 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -2805,6 +2805,7 @@ static int hns_roce_v2_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
if (hr_qp->state == IB_QPS_RESET) {
  		qp_attr->qp_state = IB_QPS_RESET;
+		ret = 0;
  		goto done;
  	}


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