linux-kernel - Re: [PATCH 09/27] mtd: nand: pxa3xx: show device structure in sysfs

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Date:	Tue, 27 May 2014 08:01:55 +0200
From:	Alexander Holler <holler@...oftware.de>
To:	Alexander Shiyan <shc_work@...l.ru>
CC:	David Woodhouse <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 09/27] mtd: nand: pxa3xx: show device structure in sysfs

Am 27.05.2014 05:12, schrieb Alexander Shiyan:
> Tue, 27 May 2014 00:12:34 +0200 от Alexander Holler <holler@...oftware.de>:
>> Fix a common error in nand-drivers which do not set up a parent devicefor
>> the mtd-device by using a new inline function.
>>
>> Signed-off-by: Alexander Holler <holler@...oftware.de>
>> ---
>>   drivers/mtd/nand/pxa3xx_nand.c | 3 +--
>>   1 file changed, 1 insertion(+), 2 deletions(-)
>>
>> diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
>> index 7588fe2..7f62e7c 100644
>> --- a/drivers/mtd/nand/pxa3xx_nand.c
>> +++ b/drivers/mtd/nand/pxa3xx_nand.c
>> @@ -1584,8 +1584,7 @@ static int alloc_nand_resource(struct platform_device *pdev)
>>   		host->mtd = mtd;
>>   		host->cs = cs;
>>   		host->info_data = info;
>> -		mtd->priv = host;
>> -		mtd->owner = THIS_MODULE;
>> +		mtd_setup_common_members(mtd, host, pdev);
>>
>>   		chip->ecc.read_page	= pxa3xx_nand_read_page_hwecc;
>>   		chip->ecc.write_page	= pxa3xx_nand_write_page_hwecc;
>> --
>
> Should we add "driver.owner = THIS_MODULE" field for struct platform_driver in this case?

Yes. I assumed all drivers/modules already had an owner. I will check 
them all and will send a v2 for those which don't have one. I wonder 
what this field is used for if it works without. ;)

Regards,

Alexander Holler

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