linux-kernel - Re: [PATCH 02/12] mtd: nand: davinci: check required ti,davinci-chipselect property

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Message-ID: <528A5B95.3040808@ti.com>
Date:	Mon, 18 Nov 2013 20:25:25 +0200
From:	"ivan.khoronzhuk" <ivan.khoronzhuk@...com>
To:	Santosh Shilimkar <santosh.shilimkar@...com>
CC:	Rob Landley <rob@...dley.net>,
	Russell King <linux@....linux.org.uk>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Rob Herring <rob.herring@...xeda.com>,
	Stephen Warren <swarren@...dotorg.org>,
	Kumar Gala <galak@...nel.crashing.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
	"Strashko, Grygorii" <grygorii.strashko@...com>
Subject: Re: [PATCH 02/12] mtd: nand: davinci: check required ti,davinci-chipselect
 property

On 11/12/2013 05:50 PM, Santosh Shilimkar wrote:
> On Monday 11 November 2013 11:53 AM, Khoronzhuk, Ivan wrote:
>> The property "ti,davinci-chipselect" is required. So we have to check
>> if it is set.
>>
>> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@...com>
>> ---
>>   drivers/mtd/nand/davinci_nand.c |   10 +++++++++-
>>   1 file changed, 9 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
>> index d87213f..8e1c88e 100644
>> --- a/drivers/mtd/nand/davinci_nand.c
>> +++ b/drivers/mtd/nand/davinci_nand.c
>> @@ -541,10 +541,14 @@ static struct davinci_nand_pdata
>>                                  GFP_KERNEL);
>>                  pdev->dev.platform_data = pdata;
>>                  if (!pdata)
>> -                       return NULL;
>> +                       return ERR_PTR(-ENOMEM);
>> +
> This change don't follow commit message.
>

I'll move it to separate patch, that will be first patch

>>                  if (!of_property_read_u32(pdev->dev.of_node,
>>                          "ti,davinci-chipselect", &prop))
>>                          pdev->id = prop;
>> +               else
>> +                       return ERR_PTR(-EINVAL);
>> +
> So the check already exist but the error case wasn't handled.
> This should be reflected in change log.
>

The error will be handled at return by:
	pdata = nand_davinci_get_pdata(pdev);
  	if (IS_ERR(pdata))
		return PTR_ERR(pdata);

or did you mean I should add dev_err().

>>                  if (!of_property_read_u32(pdev->dev.of_node,
>>                          "ti,davinci-mask-ale", &prop))
>>                          pdata->mask_ale = prop;
>> @@ -598,6 +602,10 @@ static int __init nand_davinci_probe(struct platform_device *pdev)
>>          nand_ecc_modes_t                ecc_mode;
>>
>>          pdata = nand_davinci_get_pdata(pdev);
>> +       if (IS_ERR(pdata)) {
>> +               return PTR_ERR(pdata);
>> +       }
>> +
> Again not related to commit log. You might want to split this patch
> then.
>

I'll move it in the same separate patch.

> Regards,
> Santosh
>


-- 
Regards,
Ivan Khoronzhuk
--
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