linux-kernel - Re: [PATCH] brcmfmac: Do not crash if platform data is not populated

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Message-ID: <877fxie1x8.fsf@kamboji.qca.qualcomm.com>
Date:	Tue, 23 Dec 2014 19:00:51 +0200
From:	Kalle Valo <kvalo@...eaurora.org>
To:	Arend van Spriel <arend@...adcom.com>
Cc:	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	<linux-wireless@...r.kernel.org>,
	Brett Rudley <brudley@...adcom.com>,
	Hante Meuleman <meuleman@...adcom.com>,
	"John W. Linville" <linville@...driver.com>,
	Christophe Prigent <christophe.prigent@...el.com>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] brcmfmac: Do not crash if platform data is not populated

Arend van Spriel <arend@...adcom.com> writes:

> On 12/23/14 16:47, Mika Westerberg wrote:
>> On Tue, Dec 23, 2014 at 04:37:21PM +0100, Arend van Spriel wrote:
>>> On 12/23/14 15:48, Mika Westerberg wrote:
>>>> The driver looks for pdata->oob_irq_supported to find out if wowl can be
>>>> supported. However, not all platforms populate pdata in which case we crash
>>>> the kernel because of NULL pointer dereference.
>>>
>>> Thanks, Mika
>>>
>>> However, this was already reported by Dan Carpenter and I submitted a patch
>>> for that a couple of days ago: "[PATCH 02/10] brcmfmac: Fix possible
>>> dereference of NULL pointer." [1].
>>>
>>> Regards,
>>> Arend
>>>
>>> [1]
>>> http://mid.gmane.org/1419162233-19492-3-git-send-email-arend@broadcom.com
>>
>> Oh, good. I didn't notice that one.
>>
>> Thanks for fixing it :)
>>
>> BTW, that patch seems to miss brcmf_ops_sdio_resume(), perhaps it is
>> fixed in another patch?
>
> Aargh, a nice "BTW" this is as there is no other patch for the resume
> code. Maybe I should ask Kalle to apply your patch instead of ours. If
> it did not already got applied.

I have been waiting for net-next to open so I haven't applied any -next
patches yet. So if you want I can take Mika's patch as well. Just send a
reply to your patch I should drop.

And should this patch go to 3.19?

-- 
Kalle Valo
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