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RDMA/hns: Fix unnecessary port_num transition in HW stats allocation

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[ Upstream commit b4a797b894 ]

The num_ports capability of devices should be compared with the
number of port(i.e. the input param "port_num") but not the port
index(i.e. port_num - 1).

Fixes: 5a87279591 ("RDMA/hns: Support hns HW stats")
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Link: https://lore.kernel.org/r/20231017125239.164455-7-huangjunxian6@hisilicon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Junxian Huang 2023-10-17 20:52:38 +08:00 committed by Greg Kroah-Hartman
parent ceb48ed167
commit 1210137c7f
1 changed files with 1 additions and 2 deletions
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3
drivers/infiniband/hw/hns/hns_roce_main.c
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@ -547,9 +547,8 @@ static struct rdma_hw_stats *hns_roce_alloc_hw_port_stats(
struct ib_device *device, u32 port_num)
{
struct hns_roce_dev *hr_dev = to_hr_dev(device);
u32 port = port_num - 1;
if (port > hr_dev->caps.num_ports) {
if (port_num > hr_dev->caps.num_ports) {
ibdev_err(device, "invalid port num.\n");
return NULL;
}