Re: [PATCH 4/8] input: Remove OOM message afterinput_allocate_device

From: Joe Perches
Date: Thu Oct 24 2013 - 14:43:48 EST


On Thu, 2013-10-24 at 20:26 +0200, Uwe Kleine-König wrote:
> 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@xxxxxxxxxxx>
> > 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".

Any k.alloc without __GFP_NOWARN does a generic OOM message
and a dump_stack() so there could already be 2 messages anyway.

cheers, Joe

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