[PATCH 4.18 010/228] net: hns3: Fix get_vector ops in hclgevf_main module

[Greg Kroah-Hartman]

4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Yunsheng Lin <linyunsheng@xxxxxxxxxx>

[ Upstream commit 03718db97bfb57535f3aa8110f0cbe0c616a67c0 ]

The hclgevf_free_vector function expects the caller to pass
the vector_id to it, and hclgevf_put_vector pass vector to
it now, which will cause vector allocation problem.

This patch fixes it by converting vector into vector_id before
calling hclgevf_free_vector.

Fixes: e2cb1dec9779 ("net: hns3: Add HNS3 VF HCL(Hardware Compatibility Layer) Support")
Signed-off-by: Yunsheng Lin <linyunsheng@xxxxxxxxxx>
Signed-off-by: Peng Li <lipeng321@xxxxxxxxxx>
Signed-off-by: Salil Mehta <salil.mehta@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c |   11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -648,8 +648,17 @@ static int hclgevf_unmap_ring_from_vecto
 static int hclgevf_put_vector(struct hnae3_handle *handle, int vector)
 {
 	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
+	int vector_id;
 
-	hclgevf_free_vector(hdev, vector);
+	vector_id = hclgevf_get_vector_index(hdev, vector);
+	if (vector_id < 0) {
+		dev_err(&handle->pdev->dev,
+			"hclgevf_put_vector get vector index fail. ret =%d\n",
+			vector_id);
+		return vector_id;
+	}
+
+	hclgevf_free_vector(hdev, vector_id);
 
 	return 0;
 }