linux-kernel - Re: [PATCH 1/3] ACPI: fix incorrect counts returned by acpi_parse_entries

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Message-ID: <719ba3ec-4a05-6ddc-3fbc-8b6d8eab9807@redhat.com>
Date:	Fri, 1 Jul 2016 15:36:44 -0600
From:	Al Stone <ahs3@...hat.com>
To:	"Rafael J. Wysocki" <rafael@...nel.org>
Cc:	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"Rafael J . Wysocki" <rjw@...ysocki.net>,
	Len Brown <lenb@...nel.org>
Subject: Re: [PATCH 1/3] ACPI: fix incorrect counts returned by
 acpi_parse_entries_array()

On 07/01/2016 03:25 PM, Rafael J. Wysocki wrote:
> On Fri, Jul 1, 2016 at 11:21 PM, Al Stone <ahs3@...hat.com> wrote:
>> The static function acpi_parse_entries_array() is provided an array of
>> type struct acpi_subtable_proc that has a callback function and a count.
>> The count should reflect how many times the callback has been successfully
>> called.  However, the current code only increments the 0th element of the
>> array, regardless of the number of entries in the array, or which callback
>> has been invoked.  The fix is to use the index into the array, instead of
>> a pointer to the beginning of the array.
> 
> OK, so it would be good to say what the consequences of the problem are too.
> 

Hrm.  So replace the last sentence with something like:

   The fix is to use the index into the array, instead of
   a pointer to the beginning of the array, so that the count
   for each element in the array in incremented by the
   corresponding callback.

That feels a little clunky but is it closer to what you were
thinking?

Thanks for the review!

-- 
ciao,
al
-----------------------------------
Al Stone
Software Engineer
Red Hat, Inc.
ahs3@...hat.com
-----------------------------------