Re: [PATCH] iio: mxs-lradc: indexes are unsigned

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On 01/08/2013 06:57 AM, Marek Vasut wrote:
> Dear Fabio Estevam,
> 
>> From: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
>>
>> Fix the following warning when building with W=1 option:
>>
>> drivers/staging/iio/adc/mxs-lradc.c: In function
>> 'mxs_lradc_trigger_handler': drivers/staging/iio/adc/mxs-lradc.c:244:2:
>> warning: comparison between signed and unsigned integer expressions
>> [-Wsign-compare]
>>
>> Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
> 
> Maybe use "unsigned int" instead? Either way:
>
Agreed, I've switched it over on the assumption no one will mind.

If one of you wants to check I didn't do anything silly
that would be great.
> Acked-by: Marek Vasut <marex@xxxxxxx>
added to fixes-togreg branch of iio.git on git.kernel.org
> 
>> ---
>>  drivers/staging/iio/adc/mxs-lradc.c |    2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/staging/iio/adc/mxs-lradc.c
>> b/drivers/staging/iio/adc/mxs-lradc.c index fb31b45..6cf3af8 100644
>> --- a/drivers/staging/iio/adc/mxs-lradc.c
>> +++ b/drivers/staging/iio/adc/mxs-lradc.c
>> @@ -239,7 +239,7 @@ static irqreturn_t mxs_lradc_trigger_handler(int irq,
>> void *p) struct mxs_lradc *lradc = iio_priv(iio);
>>  	const uint32_t chan_value = LRADC_CH_ACCUMULATE |
>>  		((LRADC_DELAY_TIMER_LOOP - 1) << LRADC_CH_NUM_SAMPLES_OFFSET);
>> -	int i, j = 0;
>> +	u32 i, j = 0;
>>
>>  	for_each_set_bit(i, iio->active_scan_mask, iio->masklength) {
>>  		lradc->buffer[j] = readl(lradc->base + LRADC_CH(j));
> 
> Best regards,
> Marek Vasut
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