linux-kernel - Re: [PATCH] iio: adc: meson-saradc: use NULL instead of 0 for pointer

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Date:   Sun, 28 May 2017 19:52:33 +0200
From:   Paolo Cretaro <paolocretaro@...il.com>
To:     Jonathan Cameron <jic23@...nel.org>
Cc:     linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Subject: Re: [PATCH] iio: adc: meson-saradc: use NULL instead of 0 for pointer

On 28/05/2017 16:43, Jonathan Cameron wrote:
> On Sun, 28 May 2017 13:24:38 +0200
> Paolo Cretaro <paolocretaro@...il.com> wrote:
> 
>> Fix sparse warning: Using plain integer as NULL pointer
>>
>> Signed-off-by: Paolo Cretaro <paolocretaro@...il.com>
> This looks fine to me, but ideally you should always try to include
> the driver author - particularly in the case of patches to a recent
> driver such as this one.
Sure, thanks for pointing this out, I just felt a bit embarrassed to bother
too many people with such a trivial patch.

Paolo
> 
> To that end I've cc'd Martin.
> 
> Jonathan
>> ---
>>  drivers/iio/adc/meson_saradc.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c
>> index 81cd39a57fe3..fb3f67a9ae1f 100644
>> --- a/drivers/iio/adc/meson_saradc.c
>> +++ b/drivers/iio/adc/meson_saradc.c
>> @@ -481,7 +481,7 @@ static void meson_sar_adc_clear_fifo(struct iio_dev *indio_dev)
>>  		if (!meson_sar_adc_get_fifo_count(indio_dev))
>>  			break;
>>  
>> -		regmap_read(priv->regmap, MESON_SAR_ADC_FIFO_RD, 0);
>> +		regmap_read(priv->regmap, MESON_SAR_ADC_FIFO_RD, NULL);
>>  	}
>>  }
>>  
>