Re: [PATCH 4.4 38/49] xen-netfront: Improve error handling during initialization

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On Thu, 2017-12-07 at 14:07 +0100, Greg Kroah-Hartman wrote:
> 4.4-stable review patch.  If anyone has any objections, please let me
> know.
> 
> ------------------
> 
> From: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
> 
> 
> [ Upstream commit e2e004acc7cbe3c531e752a270a74e95cde3ea48 ]
[...]
> @@ -1950,9 +1942,10 @@ abort_transaction_no_dev_fatal:
>  	xenbus_transaction_end(xbt, 1);
>   destroy_ring:
>  	xennet_disconnect_backend(info);
> -	kfree(info->queues);
> -	info->queues = NULL;
> +	xennet_destroy_queues(info);
>   out:
> +	unregister_netdev(info->netdev);
> +	xennet_free_netdev(info->netdev);
>  	return err;
>  }

This last bit of cleanup looks wrong.  It was subsequently changed
upstream by:

86b5672b1adb xen-netfront: avoid crashing on resume after a failure in talk_to_netback()

Ben.

-- 
Ben Hutchings
Software Developer, Codethink Ltd.




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