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Date:      Sat, 13 Jun 2015 00:42:03 -0700
From:      NGie Cooper <yaneurabeya@gmail.com>
To:        Konstantin Belousov <kostikbel@gmail.com>
Cc:        Allan Jude <allanjude@freebsd.org>,  "src-committers@freebsd.org" <src-committers@freebsd.org>,  "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>,  "svn-src-head@freebsd.org" <svn-src-head@freebsd.org>
Subject:   Re: svn commit: r284336 - head/sys/dev/acpi_support
Message-ID:  <CAGHfRMBuRA2w6y8rG%2BOBEK8qW1e8BSbXyrULvBpgMc=_1fnXKg@mail.gmail.com>
In-Reply-To: <20150613073746.GJ2080@kib.kiev.ua>
References:  <201506130555.t5D5tQij003839@svn.freebsd.org> <20150613073746.GJ2080@kib.kiev.ua>

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On Sat, Jun 13, 2015 at 12:37 AM, Konstantin Belousov
<kostikbel@gmail.com> wrote:
> On Sat, Jun 13, 2015 at 05:55:26AM +0000, Allan Jude wrote:
>> Author: allanjude (doc committer)
>> Date: Sat Jun 13 05:55:26 2015
>> New Revision: 284336
>> URL: https://svnweb.freebsd.org/changeset/base/284336
>>
>> Log:
>>   acpi_ibm.ko panics if SMBIOS information is not available
>>
>>   Add a check for NULL before strcmp on smbios information incase it is not populated
>>
>>   Differential Revision:      https://reviews.freebsd.org/D2750
>>   Reviewed by:        ngie, jhb
>>   Approved by:        rpaulo
>>   Sponsored by:       ScaleEngine Inc.
>>
>> Modified:
>>   head/sys/dev/acpi_support/acpi_ibm.c
>>
>> Modified: head/sys/dev/acpi_support/acpi_ibm.c
>> ==============================================================================
>> --- head/sys/dev/acpi_support/acpi_ibm.c      Sat Jun 13 01:28:19 2015        (r284335)
>> +++ head/sys/dev/acpi_support/acpi_ibm.c      Sat Jun 13 05:55:26 2015        (r284336)
>> @@ -485,6 +485,9 @@ acpi_ibm_attach(device_t dev)
>>       /* Enable per-model events. */
>>       maker = kern_getenv("smbios.system.maker");
>>       product = kern_getenv("smbios.system.product");
>> +     if (maker != NULL && product != NULL)
>> +             goto nosmbios;
> This looks reversed.  I would expect the condition to be
>         if (maker == NULL || product == NULL)
>                 goto ...;

+1



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