linux-kernel - Re: [PATCH] ieee802154: fix error handling in ieee802154fake

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Message-Id: <B1D43522-B042-4D92-8F8A-D2AD89A3F0F9@holtmann.org>
Date:	Sat, 15 Nov 2014 16:58:28 +0900
From:	Marcel Holtmann <marcel@...tmann.org>
To:	Alexander Aring <alex.aring@...il.com>,
	"David S. Miller" <davem@...emloft.net>
Cc:	Alexey Khoroshilov <khoroshilov@...ras.ru>,
	linux-wpan@...r.kernel.org,
	Network Development <netdev@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	ldv-project@...uxtesting.org
Subject: Re: [PATCH] ieee802154: fix error handling in ieee802154fake_probe()

Hi Alex,

>> In case of any failure ieee802154fake_probe() just calls unregister_netdev().
>> But it does not look safe to unregister netdevice before it was registered.
>> 
>> The patch implements straightforward resource deallocation in case of
>> failure in ieee802154fake_probe().
>> 
>> Found by Linux Driver Verification project (linuxtesting.org).
>> 
> 
> Thanks for the patch! But I already delete the whole fakehard driver.
> The patch to remove this driver is already in net-next.
> 
> There was too many issues with the fake hardMAC drivers and we don't
> really supported a "real" hardMAC transceiver. For my rework to grab the
> good things from wireless implementation and put 802.15.4 functionality
> on it I simple delete the whole driver and _maybe_ add a new one with
> the new introduced interfaces for possible hardMAC functionality.
> 
> This patch could go into bluetooth(net)/stable but I don't think that
> there are many users for this driver.

I am not sure that this is worth it then.

Dave, do you want to just take it via net-stable tree? We currently have no urgent bluetooth-stable tree patches pending.

Regards

Marcel

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