linux-kernel - Re: [PATCH] dell-wmi: Stop storing pointers to DMI tables

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Message-ID: <20160114095204.GA5473@eudyptula.hq.kempniu.pl>
Date:	Thu, 14 Jan 2016 10:52:04 +0100
From:	Michał Kępień <kernel@...pniu.pl>
To:	Pali Rohár <pali.rohar@...il.com>,
	Andy Lutomirski <luto@...nel.org>
Cc:	Jean Delvare <jdelvare@...e.com>,
	platform-driver-x86@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	stable <stable@...r.kernel.org>
Subject: Re: [PATCH] dell-wmi: Stop storing pointers to DMI tables

> > Hi Andy, I looked at this patch, but I think some people from -mm or DMI
> > code should look at it as it is memory problem... We also has one in
> > dell-laptop.ko (wrong API usage) and so -mm people could know it better.

> There are at least two platform drivers (dell-wmi and dell-laptop)
> that don't play well with the current interface.  This patch is
> intended to fix one of them.

Pali, Andy,

Could you point out the exact place where dell-laptop errs?  AFAICT, it
only has one use of dmi_walk(), the callback there calls
parse_da_table(), which does the right thing, i.e. krealloc()'ing memory
and then memcpy()'ing table contents there...

-- 
Best regards,
Michał Kępień