linux-kernel - Re: [PATCH] iio: remove unnecessary condition judgment in am2315_trigger

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Date:   Sat, 8 Sep 2018 17:59:13 +0530
From:   Himanshu Jha <himanshujha199640@...il.com>
To:     zhong jiang <zhongjiang@...wei.com>
Cc:     jic23@...nel.org, knaack.h@....de, lars@...afoo.de,
        pmeerw@...erw.net, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] iio: remove unnecessary condition judgment in
 am2315_trigger_handler

On Sat, Sep 08, 2018 at 06:57:36PM +0800, zhong jiang wrote:
> The iterator in for_each_set_bit is never null, therefore, remove
> the redundant conditional judgment.
> 
> Signed-off-by: zhong jiang <zhongjiang@...wei.com>
> ---
>  drivers/iio/humidity/am2315.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/iio/humidity/am2315.c b/drivers/iio/humidity/am2315.c
> index 7d8669d..dc12e37 100644
> --- a/drivers/iio/humidity/am2315.c
> +++ b/drivers/iio/humidity/am2315.c
> @@ -176,8 +176,7 @@ static irqreturn_t am2315_trigger_handler(int irq, void *p)
>  		i = 0;
>  		for_each_set_bit(bit, indio_dev->active_scan_mask,
>  				 indio_dev->masklength) {
> -			data->buffer[i] = (bit ? sensor_data.temp_data :
> -						 sensor_data.hum_data);
> +			data->buffer[i] = sensor_data.temp_data;

No, this seems wrong!

We have buffer support to either take both readings(temp & humid)
simultaneously, or only single channel using specified scan mask.

Patch title should be:

"iio: humidity: am2315: .... .. "


Thanks
-- 
Himanshu Jha
Undergraduate Student
Department of Electronics & Communication
Guru Tegh Bahadur Institute of Technology