linux-kernel - Re: [PATCH 05/16] iio: adc: max1027: Drop extra warning message

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Message-ID: <20210830111217.02de96e4@jic23-huawei>
Date:   Mon, 30 Aug 2021 11:12:38 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Miquel Raynal <miquel.raynal@...tlin.com>
Cc:     Lars-Peter Clausen <lars@...afoo.de>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        linux-iio@...r.kernel.org, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 05/16] iio: adc: max1027: Drop extra warning message

On Wed, 18 Aug 2021 13:11:28 +0200
Miquel Raynal <miquel.raynal@...tlin.com> wrote:

> Memory allocation errors automatically trigger the right logs, no need
> to have our own.
> 
> Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
> ---
>  drivers/iio/adc/max1027.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c
> index d79dabf20567..ac603b4ca787 100644
> --- a/drivers/iio/adc/max1027.c
> +++ b/drivers/iio/adc/max1027.c
> @@ -461,10 +461,8 @@ static int max1027_probe(struct spi_device *spi)
>  	st->buffer = devm_kmalloc_array(&indio_dev->dev,
>  				  indio_dev->num_channels, 2,
>  				  GFP_KERNEL);
> -	if (st->buffer == NULL) {
> -		dev_err(&indio_dev->dev, "Can't allocate buffer\n");
> +	if (!st->buffer)
Don't change the form of the check.  Whilst it doesn't matter in general
which of these is used (and I actually prefer the one you end up with) this
change makes this case inconsistent with the style elsewhere in the driver.

If you want to clean these all up then I don't mind that, but please do
the lot in one patch doing just that.

Thanks,

Jonathan

>  		return -ENOMEM;
> -	}
>  
>  	if (spi->irq) {
>  		ret = devm_iio_triggered_buffer_setup(&spi->dev, indio_dev,