linux-kernel - Re: [PATCH 1/1] x86: PCI-Calgary: Deletion of an unnecessary check before the function call "free_tce

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Date:	Sat, 27 Jun 2015 17:28:58 +0200
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
	Muli Ben-Yehuda <muli@...ibm.com>,
	Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
	discuss@...-64.org
CC:	Jon Mason <jdmason@...zu.us>, LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: Re: [PATCH 1/1] x86: PCI-Calgary: Deletion of an unnecessary check
 before the function call "free_tce_table"

>> From: Markus Elfring <elfring@...rs.sourceforge.net>
>> Date: Sat, 22 Nov 2014 12:55:28 +0100
>>
>> The free_tce_table() function tests whether its argument is NULL and then
>> returns immediately. Thus the test around the call is not needed.
>>
>> This issue was detected by using the Coccinelle software.
>>
>> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
> 
> Looks good to me
> 
> Acked-by: Jon Mason <jdmason@...zu.us>
> 
> 
>> ---
>>  arch/x86/kernel/pci-calgary_64.c | 3 +--
>>  1 file changed, 1 insertion(+), 2 deletions(-)
>>
>> diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
>> index 0497f71..d22a386 100644
>> --- a/arch/x86/kernel/pci-calgary_64.c
>> +++ b/arch/x86/kernel/pci-calgary_64.c
>> @@ -1476,8 +1476,7 @@ cleanup:
>>         for (--bus; bus >= 0; --bus) {
>>                 struct calgary_bus_info *info = &bus_info[bus];
>>
>> -               if (info->tce_space)
>> -                       free_tce_table(info->tce_space);
>> +               free_tce_table(info->tce_space);
>>         }
>>         return -ENOMEM;
>>  }
>> --
>> 2.1.3
>>

Do the chances increase to integrate this update suggestion
into another source code repository?

Regards,
Markus
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