Re: [PATCH] RDMA/hns: return 0 rather than return a garbage status value
From: Wei Hu (Xavier)
Date: Sat Sep 30 2017 - 03:11:53 EST
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;
}