[PATCH linux-next] RDMA/hns: fix returnvar.cocci warning

[Guo Zhengkui]

Fix the following coccicheck warning:
drivers/infiniband/hw/hns/hns_roce_mr.c:343:5-8: Unneeded variable: "ret".
Return "0" on line 351.

Signed-off-by: Guo Zhengkui <guozhengkui@xxxxxxxx>
---
 drivers/infiniband/hw/hns/hns_roce_mr.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_mr.c b/drivers/infiniband/hw/hns/hns_roce_mr.c
index b389738d157f..867972c2a894 100644
--- a/drivers/infiniband/hw/hns/hns_roce_mr.c
+++ b/drivers/infiniband/hw/hns/hns_roce_mr.c
@@ -340,7 +340,6 @@ int hns_roce_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata)
 {
 	struct hns_roce_dev *hr_dev = to_hr_dev(ibmr->device);
 	struct hns_roce_mr *mr = to_hr_mr(ibmr);
-	int ret = 0;
 
 	if (hr_dev->hw->dereg_mr)
 		hr_dev->hw->dereg_mr(hr_dev);
@@ -348,7 +347,7 @@ int hns_roce_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata)
 	hns_roce_mr_free(hr_dev, mr);
 	kfree(mr);
 
-	return ret;
+	return 0;
 }
 
 struct ib_mr *hns_roce_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
-- 
2.20.1