hv_netvsc: Fix race of register_netdevice_notifier and VF register
commit 85520856466ed6bc3b1ccb013cddac70ceb437db upstream.
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: stable@vger.kernel.org
Fixes: e04e7a7bbd
("hv_netvsc: Fix a deadlock by getting rtnl lock earlier in netvsc_probe()")
Reported-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
e8ef65c174
commit
5dd83db613
@ -2789,12 +2789,17 @@ static int __init netvsc_drv_init(void)
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}
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}
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netvsc_ring_bytes = ring_size * PAGE_SIZE;
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netvsc_ring_bytes = ring_size * PAGE_SIZE;
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register_netdevice_notifier(&netvsc_netdev_notifier);
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ret = vmbus_driver_register(&netvsc_drv);
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ret = vmbus_driver_register(&netvsc_drv);
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if (ret)
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if (ret)
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return ret;
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goto err_vmbus_reg;
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register_netdevice_notifier(&netvsc_netdev_notifier);
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return 0;
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return 0;
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err_vmbus_reg:
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unregister_netdevice_notifier(&netvsc_netdev_notifier);
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return ret;
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}
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}
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MODULE_LICENSE("GPL");
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MODULE_LICENSE("GPL");
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