linux-kernel - Re: [PATCH] drivers/acpi/ec.c fix a small memory leak

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Date:	Wed, 3 Feb 2010 22:33:06 +1100
From:	Darren Jenkins <darrenrjenkins@...il.com>
To:	Alexey Starikovskiy <astarikovskiy@...e.de>
Cc:	Kernel Janitors <kernel-janitors@...r.kernel.org>,
	Len Brown <lenb@...nel.org>,
	linux ACPI <linux-acpi@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drivers/acpi/ec.c fix a small memory leak

Hello Alexey,

On Wed, Feb 3, 2010 at 2:35 AM, Alexey Starikovskiy
<astarikovskiy@...e.de> wrote:
> NAK
>
> saved_ec is allocated if flag EC_FLAGS_VALIDATE_ECDT is true.
> EC_FLAGS_SKIP_DSDT_SCAN have no sense in such case, thus this new code path
> is never executed.

>From what I can tell this is not guaranteed by the code, it is relying
on DMI data not matching two of the stings at once.
However I don't know anything about DMI, so if you say this makes no
sense and will never happen I am happy.

I will mark this as ignore in the Coverity databse.

> On the other hand, unconditionally freeing pointer, which is might be NULL, is not
> right either.

Nowadays this is the preferred method actually.

> Regards,
> Alex.

Thanks for the feedback.

Darren J
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