linux-kernel - Re: [PATCH RESEND] mtd: fix kfree bcm47xxsflash

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Message-ID: <51A56AA6.9030706@huawei.com>
Date:	Wed, 29 May 2013 10:40:38 +0800
From:	Libo Chen <clbchenlibo.chen@...wei.com>
To:	Andy Shevchenko <andy.shevchenko@...il.com>
CC:	<dwmw2@...radead.org>, <zajec5@...il.com>,
	<artem.bityutskiy@...ux.intel.com>,
	Bill Pemberton <wfp5p@...ginia.edu>, <hauke@...ke-m.de>,
	<linux-mtd@...ts.infradead.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Li Zefan <lizefan@...wei.com>
Subject: Re: [PATCH RESEND] mtd: fix kfree bcm47xxsflash

On 2013/5/28 23:29, Andy Shevchenko wrote:
> This is good fix, but I rather prefer not to see it in this shape.
> See comments below.
> 
> On Wed, May 22, 2013 at 6:51 AM, Libo Chen <clbchenlibo.chen@...wei.com> wrote:
>>
>> mtd is just member of bcm47xxsflash, so we should free bcm47xxsflash  not its member.
>>
>> Signed-off-by: Libo Chen <libo.chen@...wei.com>
>> Acked-by: Rafał Miłecki <zajec5@...il.com>
>> ---
>>  drivers/mtd/devices/bcm47xxsflash.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> * add Acked-by: Rafał Miłecki <zajec5@...il.com>
>> * change send list
>>
>> diff --git a/drivers/mtd/devices/bcm47xxsflash.c b/drivers/mtd/devices/bcm47xxsflash.c
>> index 9526628..4aa9141 100644
>> --- a/drivers/mtd/devices/bcm47xxsflash.c
>> +++ b/drivers/mtd/devices/bcm47xxsflash.c
>> @@ -76,7 +76,7 @@ static int bcm47xxsflash_bcma_probe(struct platform_device *pdev)
>>         return 0;
>>
>>  err_dev_reg:
>> -       kfree(&b47s->mtd);
>> +       kfree(b47s);
>>  out:
>>         return err;
>>  }
> 
> What about to switch to devm_* and remove those labels and kfrees at all?
> 
> Additionally you can add another patch to use module_platform_driver()
> macro instead of module_init/exit.
> 

ok, I will update later.

thanks,

Libo


> --
> With Best Regards,
> Andy Shevchenko
> 
> .
> 


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