linux-kernel - Re: [PATCH 4/8] input: Remove OOM message after input_allocate

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Date:	Thu, 24 Oct 2013 11:45:39 -0700
From:	Joe Perches <joe@...ches.com>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	linux-kernel@...r.kernel.org, Wan ZongShun <mcuos.com@...il.com>,
	Andrey Moiseev <o2g.org.ru@...il.com>,
	Henrik Rydberg <rydberg@...omail.se>,
	Josh Wu <josh.wu@...el.com>, Ferruh Yigit <fery@...ress.com>,
	Pau Oliva Fora <pof@...ack.org>,
	Ben Dooks <ben-linux@...ff.org>,
	Kukjin Kim <kgene.kim@...sung.com>,
	linux-input@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH 4/8] input: Remove OOM message after
 input_allocate_device

On Thu, 2013-10-24 at 11:37 -0700, Dmitry Torokhov wrote:
> Hi Joe,
> 
> On Wed, Oct 23, 2013 at 12:14:50PM -0700, Joe Perches wrote:
> > Emitting an OOM message isn't necessary after input_allocate_device
> > as there's a generic OOM and a dump_stack already done.
> 
> No, please don't. The kzalloc may get changed in the future to not dump
> stack (that was added originally because not everyone was handling OOM
> properly, right?), input core might get changed to use something else
> than kzalloc, etc, etc.
> 
> The majority of errors use dev_err so we also get idea what device
> failed (if there are several), and more.

I think that's not valuable as input_allocate_device already has
dozens of locations that don't emit a specific OOM and centralizing
the location for any generic message would work anyway.



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