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

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Date:	Thu, 24 Oct 2013 20:26:11 +0200
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	Joe Perches <joe@...ches.com>
Cc:	linux-kernel@...r.kernel.org, Kukjin Kim <kgene.kim@...sung.com>,
	Ferruh Yigit <fery@...ress.com>,
	Wan ZongShun <mcuos.com@...il.com>,
	Andrey Moiseev <o2g.org.ru@...il.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Josh Wu <josh.wu@...el.com>, linux-samsung-soc@...r.kernel.org,
	Henrik Rydberg <rydberg@...omail.se>,
	Ben Dooks <ben-linux@...ff.org>, linux-input@...r.kernel.org,
	Pau Oliva Fora <pof@...ack.org>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 4/8] input: Remove OOM message after input_allocate_device

Hello 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.
> 
> [...]
> Signed-off-by: Joe Perches <joe@...ches.com>
> diff --git a/drivers/input/joystick/as5011.c b/drivers/input/joystick/as5011.c
> index 005d852..3b9c709 100644
> --- a/drivers/input/joystick/as5011.c
> +++ b/drivers/input/joystick/as5011.c
> @@ -254,8 +254,6 @@ static int as5011_probe(struct i2c_client *client,
>  	as5011 = kmalloc(sizeof(struct as5011_device), GFP_KERNEL);
>  	input_dev = input_allocate_device();
>  	if (!as5011 || !input_dev) {
> -		dev_err(&client->dev,
> -			"Can't allocate memory for device structure\n");
Don't know if that can happen, but if as5011 is NULL but input_dev isn't
the message would still be sensible, wouldn't it? There are several more
that suffer the same "problem".

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
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