Re: [Outreachy kernel] [PATCH 1/4] iio: common: st_sensors: Replace ternary operator with min macro

SIMRAN SINGHAL
2017-03-29T17:24:22Z

On Wed, Mar 29, 2017 at 9:46 PM, Daniel Baluta <daniel.baluta@gmail.com> wrote:
> On Wed, Mar 29, 2017 at 3:33 PM, simran singhal
> <singhalsimran0@gmail.com> wrote:
>> Use macro min() to get the minimum of two values for brevity and
>> readability.
>>
>> Signed-off-by: simran singhal <singhalsimran0@gmail.com>
>> ---
>> drivers/iio/common/st_sensors/st_sensors_i2c.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/iio/common/st_sensors/st_sensors_i2c.c b/drivers/iio/common/st_sensors/st_sensors_i2c.c
>> index c83df4d..7a68fdd 100644
>> --- a/drivers/iio/common/st_sensors/st_sensors_i2c.c
>> +++ b/drivers/iio/common/st_sensors/st_sensors_i2c.c
>> @@ -39,7 +39,7 @@ static int st_sensors_i2c_read_byte(struct st_sensor_transfer_buffer *tb,
>> *res_byte = err & 0xff;
>>
>> st_accel_i2c_read_byte_error:
>> - return err < 0 ? err : 0;
>> + return min(err, 0);
>> }
>
> Appreciate the brevity but this certainly doesn't make code
> easier to read.
>
> In linux kernel err < 0 signifies an error and be replacing
> comparison < 0 with min() we some hide the meaning of this.
>
Yes, you are right keeping the previous one will be more
meaningful.

Thanks.

> thanks,
> Daniel.