linux-kernel - Re: [PATCH 1/4] clocksource: em_sti: remove unnecessary OOM messages

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Message-id: <001a01cf757a$087b4530$1971cf90$%han@samsung.com>
Date:	Thu, 22 May 2014 13:55:20 +0900
From:	Jingoo Han <jg1.han@...sung.com>
To:	'Daniel Lezcano' <daniel.lezcano@...aro.org>
Cc:	'Thomas Gleixner' <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org,
	'Shinya Kuribayashi' <shinya.kuribayashi.px@...esas.com>,
	'Magnus Damm' <damm@...nsource.se>,
	'Viresh Kumar' <viresh.kumar@...aro.org>,
	'Laurent Pinchart' <laurent.pinchart@...asonboard.com>,
	'Dan Carpenter' <dan.carpenter@...cle.com>,
	'Joe Perches' <joe@...ches.com>,
	'Thierry Reding' <thierry.reding@...il.com>,
	'Andrew Morton' <akpm@...ux-foundation.org>,
	'Jingoo Han' <jg1.han@...sung.com>
Subject: Re: [PATCH 1/4] clocksource: em_sti: remove unnecessary OOM messages

On Monday, May 19, 2014 7:48 PM, Daniel Lezcano wrote:
> On 04/29/2014 10:26 AM, Jingoo Han wrote:
> > The site-specific OOM messages are unnecessary, because they
> > duplicate the MM subsystem generic OOM message.
> 
> Are you sure the MM subsys display a message when an allocation fails ?
> 
> There are multiple reasons an allocation can fail.

(+cc Viresh Kumar, Laurent Pinchart, Dan Carpenter, Joe Perches,
       Thierry Reding, Andrew Morton)

There was a discussion about this in other threads. [1]
Please refer to the following link. Thank you.

[1] http://patchwork.ozlabs.org/patch/324158/

Best regards,
Jingoo Han

> 
> > Signed-off-by: Jingoo Han <jg1.han@...sung.com>
> > ---
> >   drivers/clocksource/em_sti.c |    4 +---
> >   1 file changed, 1 insertion(+), 3 deletions(-)
> >
> > diff --git a/drivers/clocksource/em_sti.c b/drivers/clocksource/em_sti.c
> > index 9d17083..d0a7bd6 100644
> > --- a/drivers/clocksource/em_sti.c
> > +++ b/drivers/clocksource/em_sti.c
> > @@ -318,10 +318,8 @@ static int em_sti_probe(struct platform_device *pdev)
> >   	int irq;
> >
> >   	p = devm_kzalloc(&pdev->dev, sizeof(*p), GFP_KERNEL);
> > -	if (p == NULL) {
> > -		dev_err(&pdev->dev, "failed to allocate driver data\n");
> > +	if (p == NULL)
> >   		return -ENOMEM;
> > -	}
> >
> >   	p->pdev = pdev;
> >   	platform_set_drvdata(pdev, p);
> >

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