vdpa: ifcvf: set pci driver data in probe

[ Upstream commit bd8bb9a ]

We should set the pci driver data in probe instead of the vdpa device
adding callback. Otherwise if no vDPA device is created we will lose
the pointer to the management device.

Fixes: 6b5df34 ("vDPA/ifcvf: implement management netlink framework for ifcvf")
Tested-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20220524055557.1938-1-jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

drivers/vdpa/ifcvf/ifcvf_main.c

@@ -505,7 +505,6 @@ static int ifcvf_vdpa_dev_add(struct vdpa_mgmt_dev *mdev, const char *name)
 	}
 
 	ifcvf_mgmt_dev->adapter = adapter;
-	pci_set_drvdata(pdev, ifcvf_mgmt_dev);
 
 	vf = &adapter->vf;
 	vf->dev_type = get_dev_type(pdev);
@@ -620,6 +619,8 @@ static int ifcvf_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		goto err;
 	}
 
+	pci_set_drvdata(pdev, ifcvf_mgmt_dev);
+
 	return 0;
 
 err: