linux-kernel - Re: [PATCH] ALSA: mts64: fix NULL pointer dereference

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Date:	Mon, 29 Feb 2016 21:52:20 +0530
From:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:	Takashi Iwai <tiwai@...e.de>
Cc:	Jaroslav Kysela <perex@...ex.cz>, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ALSA: mts64: fix NULL pointer dereference

On Mon, Feb 29, 2016 at 01:24:24PM +0100, Takashi Iwai wrote:
> On Mon, 29 Feb 2016 13:13:30 +0100,
> Sudip Mukherjee wrote:
> > 
> > While registering pardev, the irq_func was also registered. As a
> > result when we tried to probe for the card, an interrupt was generated
> > and in the ISR we tried to dereference private_data. But private_data
> > is still NULL as we have not yet done snd_mts64_create(). Lets probe
> > for the card after mts64 is created.
> > 
> > Reported-by: Fengguang Wu <fengguang.wu@...el.com>
> > Fixes: 94a573500d48 ("ALSA: mts64: use new parport device model")
> > Signed-off-by: Sudip Mukherjee <sudip.mukherjee@...ethink.co.uk>
> 
> Applied, thanks.

Thanks, I will wait for one day for any report from 0day and then send
you the similar patch for portman.

BTW, i lost that auction of portman.

regards
sudip