diff options
| author | Haiyang Zhang <[email protected]> | 2023-11-19 08:23:42 -0800 |
|---|---|---|
| committer | Paolo Abeni <[email protected]> | 2023-11-21 13:15:02 +0100 |
| commit | 85520856466ed6bc3b1ccb013cddac70ceb437db (patch) | |
| tree | f9a47a3aa4cf18bdeab31d3c8edab85dda383f6e | |
| parent | d30fb712e52964f2cf9a9c14cf67078394044837 (diff) | |
hv_netvsc: Fix race of register_netdevice_notifier and VF register
If VF NIC is registered earlier, NETDEV_REGISTER event is replayed,
but NETDEV_POST_INIT is not.
Move register_netdevice_notifier() earlier, so the call back
function is set before probing.
Cc: [email protected]
Fixes: e04e7a7bbd4b ("hv_netvsc: Fix a deadlock by getting rtnl lock earlier in netvsc_probe()")
Reported-by: Dexuan Cui <[email protected]>
Signed-off-by: Haiyang Zhang <[email protected]>
Reviewed-by: Wojciech Drewek <[email protected]>
Reviewed-by: Dexuan Cui <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>
| -rw-r--r-- | drivers/net/hyperv/netvsc_drv.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index 5e528a76f5f5..b7dfd51f09e6 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -2793,12 +2793,17 @@ static int __init netvsc_drv_init(void) } netvsc_ring_bytes = ring_size * PAGE_SIZE; + register_netdevice_notifier(&netvsc_netdev_notifier); + ret = vmbus_driver_register(&netvsc_drv); if (ret) - return ret; + goto err_vmbus_reg; - register_netdevice_notifier(&netvsc_netdev_notifier); return 0; + +err_vmbus_reg: + unregister_netdevice_notifier(&netvsc_netdev_notifier); + return ret; } MODULE_LICENSE("GPL"); |