From: Gal Pressman <pressmangal@gmail.com>
Date: Thu, 9 Aug 2018 22:00:47 +0300
Subject: RDMA/hns: Fix usage of bitmap allocation functions return values
Patch-mainline: v4.19-rc1
Git-commit: a1ceeca679dccc492235f0f629d9e9f7b3d51ca8
References: bsc#1104427 FATE#326416
hns bitmap allocation functions return 0 on success and -1 on failure.
Callers of these functions wrongly used their return value as an errno,
fix that by making a proper conversion.
Fixes: a598c6f4c5a8 ("IB/hns: Simplify function of pd alloc and qp alloc")
Signed-off-by: Gal Pressman <pressmangal@gmail.com>
Acked-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/hw/hns/hns_roce_pd.c | 2 +-
drivers/infiniband/hw/hns/hns_roce_qp.c | 5 ++++-
2 files changed, 5 insertions(+), 2 deletions(-)
--- a/drivers/infiniband/hw/hns/hns_roce_pd.c
+++ b/drivers/infiniband/hw/hns/hns_roce_pd.c
@@ -37,7 +37,7 @@
static int hns_roce_pd_alloc(struct hns_roce_dev *hr_dev, unsigned long *pdn)
{
- return hns_roce_bitmap_alloc(&hr_dev->pd_bitmap, pdn);
+ return hns_roce_bitmap_alloc(&hr_dev->pd_bitmap, pdn) ? -ENOMEM : 0;
}
static void hns_roce_pd_free(struct hns_roce_dev *hr_dev, unsigned long pdn)
--- a/drivers/infiniband/hw/hns/hns_roce_qp.c
+++ b/drivers/infiniband/hw/hns/hns_roce_qp.c
@@ -115,7 +115,10 @@ static int hns_roce_reserve_range_qp(str
{
struct hns_roce_qp_table *qp_table = &hr_dev->qp_table;
- return hns_roce_bitmap_alloc_range(&qp_table->bitmap, cnt, align, base);
+ return hns_roce_bitmap_alloc_range(&qp_table->bitmap, cnt, align,
+ base) ?
+ -ENOMEM :
+ 0;
}
enum hns_roce_qp_state to_hns_roce_state(enum ib_qp_state state)