linux-kernel - [PATCH] vdpa: ifcvf: set pci driver data in probe

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Date:   Tue, 24 May 2022 13:55:57 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     mst@...hat.com, jasowang@...hat.com, lingshan.zhu@...el.com
Cc:     virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org, Zheyu Ma <zheyuma97@...il.com>
Subject: [PATCH] vdpa: ifcvf: set pci driver data in probe

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: 6b5df347c6482 ("vDPA/ifcvf: implement management netlink framework for ifcvf")
Tested-by: Zheyu Ma <zheyuma97@...il.com>
Signed-off-by: Jason Wang <jasowang@...hat.com>
---
 drivers/vdpa/ifcvf/ifcvf_main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c
index 750e5f23406d..0a5670729412 100644
--- a/drivers/vdpa/ifcvf/ifcvf_main.c
+++ b/drivers/vdpa/ifcvf/ifcvf_main.c
@@ -771,7 +771,6 @@ 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);
@@ -886,6 +885,8 @@ 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:
-- 
2.25.1