From 904de76c42b7d758e75197f8d532a1ffafc3caad Mon Sep 17 00:00:00 2001 From: Wenpeng Liang Date: Wed, 2 Mar 2022 14:48:28 +0800 Subject: [PATCH] RDMA/hns: Clean up the return value check of hns_roce_alloc_cmd_mailbox() hns_roce_alloc_cmd_mailbox() never returns NULL, so the check should be IS_ERR(). And the error code should be converted as the function's return value. Link: https://lore.kernel.org/r/20220302064830.61706-8-liangwenpeng@huawei.com Signed-off-by: Wenpeng Liang Reviewed-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 4 ++-- drivers/infiniband/hw/hns/hns_roce_mr.c | 6 ++---- drivers/infiniband/hw/hns/hns_roce_srq.c | 4 ++-- 3 files changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index 631f6e233492..06eb4f00428c 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -5981,8 +5981,8 @@ static int hns_roce_v2_create_eq(struct hns_roce_dev *hr_dev, /* Allocate mailbox memory */ mailbox = hns_roce_alloc_cmd_mailbox(hr_dev); - if (IS_ERR_OR_NULL(mailbox)) - return -ENOMEM; + if (IS_ERR(mailbox)) + return PTR_ERR(mailbox); ret = alloc_eq_buf(hr_dev, eq); if (ret) diff --git a/drivers/infiniband/hw/hns/hns_roce_mr.c b/drivers/infiniband/hw/hns/hns_roce_mr.c index 39de862666d7..b58b869339cc 100644 --- a/drivers/infiniband/hw/hns/hns_roce_mr.c +++ b/drivers/infiniband/hw/hns/hns_roce_mr.c @@ -148,10 +148,8 @@ static int hns_roce_mr_enable(struct hns_roce_dev *hr_dev, /* Allocate mailbox memory */ mailbox = hns_roce_alloc_cmd_mailbox(hr_dev); - if (IS_ERR(mailbox)) { - ret = PTR_ERR(mailbox); - return ret; - } + if (IS_ERR(mailbox)) + return PTR_ERR(mailbox); if (mr->type != MR_TYPE_FRMR) ret = hr_dev->hw->write_mtpt(hr_dev, mailbox->buf, mr); diff --git a/drivers/infiniband/hw/hns/hns_roce_srq.c b/drivers/infiniband/hw/hns/hns_roce_srq.c index e316276e18c2..97032a357b00 100644 --- a/drivers/infiniband/hw/hns/hns_roce_srq.c +++ b/drivers/infiniband/hw/hns/hns_roce_srq.c @@ -89,9 +89,9 @@ static int alloc_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq) } mailbox = hns_roce_alloc_cmd_mailbox(hr_dev); - if (IS_ERR_OR_NULL(mailbox)) { + if (IS_ERR(mailbox)) { ibdev_err(ibdev, "failed to alloc mailbox for SRQC.\n"); - ret = -ENOMEM; + ret = PTR_ERR(mailbox); goto err_xa; } -- GitLab