linux-kernel - Re: [PATCH] watchdog: davinci_wdt: update to devm

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Date:	Fri, 8 Feb 2013 09:49:27 +0530
From:	Sekhar Nori <nsekhar@...com>
To:	"Kumar, Anil" <anilkumar.v@...com>
CC:	"linux-watchdog@...r.kernel.org" <linux-watchdog@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"davinci-linux-open-source@...ux.davincidsp.com" 
	<davinci-linux-open-source@...ux.davincidsp.com>,
	"wim@...ana.be" <wim@...ana.be>
Subject: Re: [PATCH] watchdog: davinci_wdt: update to devm_* API

On 2/8/2013 8:05 AM, Kumar, Anil wrote:
> On Thu, Feb 07, 2013 at 23:20:48, Nori, Sekhar wrote:
>> On 2/7/2013 9:02 AM, Kumar, Anil wrote:

>>> Update the code to use devm_* API so that driver
>>> core will manage resources.

>>> Signed-off-by: Kumar, Anil <anilkumar.v@...com>

>>> diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c

>>> @@ -201,10 +200,10 @@ static struct miscdevice davinci_wdt_miscdev = {
>>>  
>>>  static int davinci_wdt_probe(struct platform_device *pdev)
>>>  {
>>> -	int ret = 0, size;
>>> -	struct device *dev = &pdev->dev;
>>
>> Its not clear why you had to drop use of this variable?
> 
> Actually, I have not found any particular need to take pointer
> into dev and then use in the code. Rather we can directly use. 

No, it is good enough as-is. It will help rid your patch of unnecessary
changes and its not really convenient to to keep reading &pdev->dev all
the time.

Thanks,
Sekhar
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