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received-spf: None (protection.outlook.com: microsoft.com does not designate permitted sender hosts) authentication-results: spf=none (sender IP is ) smtp.mailfrom=Alexander.Levin@microsoft.com; x-microsoft-antispam-message-info: 2kW4fCX1PmuSsu/ZFaiqdTcwzA2gI+AL43041mZo6KAiMd47djnomA019BUHVAXtvygq8O+OU5w6EtEf6LFR3J4H6YwCU1ui8dFzKOqPXmitfBhQ0w2qUQs7ShFXIi+k8QVsF6ChJfwL6Q+sc2VHwv6EwXUuN1uI8+sycr5DiJLeHqomJ/RkbNyXrQ/EhLjsH7jKHZTqjQKiGB030yjm46q2oQPU7/R85yC0f9YWOzzY1pPUVjWuqxMobmspiqTLGyaoq5w/SzwHh7mhvhk/uYj6jgZ01YBT4t7UYsrggKgFpovAYcMC1F5ZZ375RPbVyBBJGuMZKBaU0yBnF+i/qmYp10IUxXqwpyCYc5Ha2kU= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: 21f47340-43e5-4782-4d16-08d610d4de18 X-MS-Exchange-CrossTenant-originalarrivaltime: 02 Sep 2018 13:05:37.8448 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR21MB0629 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Lijun Ou [ Upstream commit 26f63b9c33ceda12fb9136a1d0c80e03c9ebb514 ] When hop_num is more than three, it need to return -EINVAL. This patch fixes it. Signed-off-by: Lijun Ou Signed-off-by: Jason Gunthorpe Signed-off-by: Sasha Levin --- drivers/infiniband/hw/hns/hns_roce_hem.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/infiniband/hw/hns/hns_roce_hem.c b/drivers/infiniband/= hw/hns/hns_roce_hem.c index 63b5b3edabcb..8dc336a85128 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hem.c +++ b/drivers/infiniband/hw/hns/hns_roce_hem.c @@ -494,6 +494,9 @@ static int hns_roce_table_mhop_get(struct hns_roce_dev = *hr_dev, step_idx =3D 1; } else if (hop_num =3D=3D HNS_ROCE_HOP_NUM_0) { step_idx =3D 0; + } else { + ret =3D -EINVAL; + goto err_dma_alloc_l1; } =20 /* set HEM base address to hardware */ --=20 2.17.1