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

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Message-ID: <20141223154738.GM1314@lahna.fi.intel.com>
Date:	Tue, 23 Dec 2014 17:47:38 +0200
From:	Mika Westerberg <mika.westerberg@...ux.intel.com>
To:	Arend van Spriel <arend@...adcom.com>
Cc:	linux-wireless@...r.kernel.org,
	Brett Rudley <brudley@...adcom.com>,
	Hante Meuleman <meuleman@...adcom.com>,
	Kalle Valo <kvalo@...eaurora.org>,
	"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

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?
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