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SubjectRe: [PATCH v2 2/2] iio: magnetometer: add mmc34160 magnetometer driver
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On 02/08/15 17:37, Dan Carpenter wrote:
> On Sun, Aug 02, 2015 at 05:32:30PM +0100, Jonathan Cameron wrote:
>> On 20/07/15 15:14, Dan Carpenter wrote:
>>> On Mon, Jul 20, 2015 at 04:52:30PM +0300, Teodora Baluta wrote:
>>>> +static int mmc34160_raw_to_mgauss(int raw[3], int sens[3], int nfo,
>>>> + int index, int *val)
>>>> +{
>>>> + switch (index) {
>>>> + case AXIS_X:
>>>> + *val = (raw[AXIS_X] - nfo) * 1000 / sens[AXIS_X];
>>>> + break;
>>>> + case AXIS_Y:
>>>> + *val = (raw[AXIS_Y] - nfo) * 1000 / sens[AXIS_Y];
>>>> + break;
>>>> + case AXIS_Z:
>>>> + *val = (raw[AXIS_Z] - nfo) * 1000 / sens[AXIS_Z];
>>>> + break;
>>>> + default:
>>>> + return -EINVAL;
>>>> + }
>>>> +
>>>> + return 0;
>>>> +}
>>>
>>> We never pass invalid indexes here so this could be replaced with:
>>>
>>> static int mmc34160_raw_to_mgauss(int raw[3], int sens[3], int nfo,
>>> int index, int *val)
>>> {
>>> *val = (raw[index] - nfo) * 1000 / sens[index];
>>> return 0;
>> Even better change the function signature and don't return anything at
>> all perhaps?
>>
>
> Yeah. Or this:
>
> static int mmc34160_raw_to_mgauss(int raw[3], int sens[3], int nfo, int index)
> {
> return (raw[index] - nfo) * 1000 / sens[index];
> }
>
> regards,
> dan carpenter
*laughs*. Good point ;)
>
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