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vDPA/ifcvf: alloc the mgmt_dev before the adapter

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commit 66e3970b16 upstream.

This commit reverses the order of allocating the
management device and the adapter. So that it would
be possible to move the allocation of the adapter
to dev_add().

Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Cc: stable@vger.kernel.org
Message-Id: <20221125145724.1129962-4-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zhu Lingshan
2022-11-25 22:57:15 +08:00
committed by Greg Kroah-Hartman
parent 50da55ec0f
commit aa2af9353a
1 changed files with 14 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
drivers/vdpa/ifcvf/ifcvf_main.c
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@@ -831,22 +831,30 @@ static int ifcvf_probe(struct pci_dev *pdev, const struct pci_device_id *id)
}
pci_set_master(pdev);
ifcvf_mgmt_dev = kzalloc(sizeof(struct ifcvf_vdpa_mgmt_dev), GFP_KERNEL);
if (!ifcvf_mgmt_dev) {
IFCVF_ERR(pdev, "Failed to alloc memory for the vDPA management device\n");
return -ENOMEM;
}
adapter = vdpa_alloc_device(struct ifcvf_adapter, vdpa,
dev, &ifc_vdpa_ops, 1, 1, NULL, false);
if (IS_ERR(adapter)) {
IFCVF_ERR(pdev, "Failed to allocate vDPA structure");
return PTR_ERR(adapter);
ret = PTR_ERR(adapter);
goto err;
}
adapter->pdev = pdev;
adapter->vdpa.dma_dev = &pdev->dev;
adapter->vdpa.mdev = &ifcvf_mgmt_dev->mdev;
ifcvf_mgmt_dev->adapter = adapter;
vf = &adapter->vf;
vf->dev_type = get_dev_type(pdev);
vf->base = pcim_iomap_table(pdev);
vf->pdev = pdev;
adapter->pdev = pdev;
adapter->vdpa.dma_dev = &pdev->dev;
ret = ifcvf_init_hw(vf, pdev);
if (ret) {
IFCVF_ERR(pdev, "Failed to init IFCVF hw\n");
@@ -859,16 +867,6 @@ static int ifcvf_probe(struct pci_dev *pdev, const struct pci_device_id *id)
vf->hw_features = ifcvf_get_hw_features(vf);
vf->config_size = ifcvf_get_config_size(vf);
ifcvf_mgmt_dev = kzalloc(sizeof(struct ifcvf_vdpa_mgmt_dev), GFP_KERNEL);
if (!ifcvf_mgmt_dev) {
IFCVF_ERR(pdev, "Failed to alloc memory for the vDPA management device\n");
return -ENOMEM;
}
ifcvf_mgmt_dev->mdev.ops = &ifcvf_vdpa_mgmt_dev_ops;
ifcvf_mgmt_dev->mdev.device = dev;
ifcvf_mgmt_dev->adapter = adapter;
dev_type = get_dev_type(pdev);
switch (dev_type) {
case VIRTIO_ID_NET:
@@ -883,12 +881,11 @@ static int ifcvf_probe(struct pci_dev *pdev, const struct pci_device_id *id)
goto err;
}
ifcvf_mgmt_dev->mdev.ops = &ifcvf_vdpa_mgmt_dev_ops;
ifcvf_mgmt_dev->mdev.device = dev;
ifcvf_mgmt_dev->mdev.max_supported_vqs = vf->nr_vring;
ifcvf_mgmt_dev->mdev.supported_features = vf->hw_features;
adapter->vdpa.mdev = &ifcvf_mgmt_dev->mdev;
ret = vdpa_mgmtdev_register(&ifcvf_mgmt_dev->mdev);
if (ret) {
IFCVF_ERR(pdev,