Re: [PATCH] iio: chemical: vz89x: correct xfer return value

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On 27/12/15 05:11, Matt Ranostay wrote:
> vz89x_i2c_xfer() function was never returning a non-positive value on
> error, and this patch corrects that with a -EIO return code.
> 
> Also the error condition was incorrect since it was against measurement
> size and not the i2c messages send/received count.
> 
> Signed-off-by: Matt Ranostay <mranostay@xxxxxxxxx>
This doesn't apply to the current tree as we already have
an 'incorrect' fix in place for the value being compared against below.

J
> ---
>  drivers/iio/chemical/vz89x.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/iio/chemical/vz89x.c b/drivers/iio/chemical/vz89x.c
> index c3367aa..0666919 100644
> --- a/drivers/iio/chemical/vz89x.c
> +++ b/drivers/iio/chemical/vz89x.c
> @@ -120,7 +120,7 @@ static int vz89x_i2c_xfer(struct vz89x_data *data, u8 cmd)
>  
>  	ret = i2c_transfer(client->adapter, msg, 2);
>  
> -	return (ret == VZ89X_REG_MEASUREMENT_SIZE) ? 0 : ret;
> +	return (ret == 2) ? 0 : -EIO;
>  }
>  
>  static int vz89x_smbus_xfer(struct vz89x_data *data, u8 cmd)
> 

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